---
title: "Conversion Calculator ! - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "This unit converter easily changes all currencies, weights, sizes, distances and measurements. If you can use a calculator, you can use this simple tool to get precise results.  It will be the only to"
---

# Conversion Calculator ! — United States
> Metric to US Unit Converter

![Conversion Calculator ! App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/ab/3e/28/ab3e2887-feae-2bbd-915e-14147e15af8f/AppIcon-0-0-1x_U007epad-0-1-0-85-220.png/434x0w.png)

**Developer:** [oWorld Software](https://apptail.io/developer/oworld-software-zj) (France)
**Category:** Travel
**Rating:** 4.6/5 (13,142 ratings)
**Price:** Free
**Bundle ID:** com.olivier.convertItFree
**Store:** Apple App Store
**Country:** United States
**Version:** 3.0.15 (released 2026-06-16)
**Original Release:** 2011-02-21
**Languages:** English, French, German, Hindi, Italian, Chinese, Spanish, Thai

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id417794697)
**AppTail Page:** [https://apptail.io/app/conversion-calculator-ddb/united-states](https://apptail.io/app/conversion-calculator-ddb/united-states)

## Conversion Calculator ! Description
This unit converter easily changes all currencies, weights, sizes, distances and measurements. If you can use a calculator, you can use this simple tool to get precise results.

It will be the only tool you need to answer all your conversion questions.

Always has real-time currency conversions live on the app. Never miss a currency beat!

For cooks, contractors, DIY-ers, and anyone that needs a quick and easy conversion of temperature, length, volume, or international currencies.

How to use?

Choose the type of unit you would like to convert from the icons, then scroll to the two units you are looking for. That's it!

Here is the full list of each currency and unit included in the measurement converter :

- Weight: Ounces (Oz), Pounds (lbs), Metric tons, Kilograms (KG), Gram, Milligram (MG), Stone (St)
- Temperature: Celsius (°C), Fahrenheit (°F), Kelvin (K), Reaumur scale, Rankine
- Distance, length and size: Miles to kilometers, yards to meters, feet to meters, inches to centimeters, kilometer to miles, meters to yards, centimeters to inches, millimeters to inches
- Volume, quantity and capacity: Tablespoon (Tbs), teaspoon (Tsp), Cup, Pint (Pt), Once (flOz), Gallon (Gal), Liter (Lt), Deciliter (Dl), Centiliter (Cl), Millilitre (Ml), km3, m3, cm3, mm3
- Time, duration and period: Seconds, Minutes, Hours, Days, Weeks, Months, Years
- Speed: Meters per second (M/s), Kilometer per second (km/s), Kilometer per hour (Km/h), Feet/second (Ft/s), Miles per second - (Mi/s), Miles per hour - (Mph), Knots per second (Kts)
- Computer memory, IT, RAM: bit, Kilobit, Megabit to Gigabits (Mb to Gb), Gigabits to Terabits (Tb), Octet, Kilobyte, Megabyte, Gigabyte, Terabyte
- Energy, power, heat and thermodynamics: Kilowatt-hour - kWh, Watt-second, MegaJoule, kiloJoule - kJ, Joule, Therm, electron-volt - eV, quadrillion (Quad), British thermal (BTU), Foot-pound
- Fuel consumption: Liters per kilometers (L/km), Liter per 10 kilometers (L/10km), Liter per 100 kilometers (L/100km), Kilometers per liter, Miles per liters, Miles per gallon (Mpg)
- Electricity: Ampere - amp, MilliAmpere (mA), MicroAmpere, NanoAmpere, KiloAmpere, MegaAmpere...

And unlock even more units of measurement:
- Currency: with forex trading currency exchange rate. US Dollar ($ USD), Euro (€ EUR), Pound Sterling (£ GBP), Canadian Dollar (CAD), Swiss Franc (CHF), Australian Dollar (AUD), Japanese Yen (JPY), Indian Rupee (INR), Chinese Yuan (CNY), Singapour Dollar (SGD), Peso, BitCoin and a lot more!
- Shoes and clothes size (men, women, kids, and babies)
- Angle, force, pressure, flow

Don't want ads? We have Converter Premium.

Auto-renewable subscription: Unit Converter Premium
- Full pack - 1-year renewal - USD 9.99 - available with a 7 days free trial
- Full pack - 1-month renewal - USD 0.99

The total amount for the subscription period will be charged to your iTunes Account. Unless you turn it off auto-renewal at least 24 hours before the end of the subscription period, the subscription will renew automatically for the same price and will be charged on to your iTunes Account. You can manage the subscription and turn off automatic renewal in the account settings for your Apple ID at any time. Any used portion of a free trial period will be forfeited when subscribing to a non-trial plan.

Please feel free to contact me if you have any questions: Olivier@oworld.co.

Terms of service: 

Privacy policy: 

Keep in mind that this application is constantly evolving. Got an idea for improvement? Can’t find a category? Please, send me an email to olivier@oworld.fr

## Conversion Calculator ! Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/7e/58/7b/7e587b29-db3f-d009-b8b5-ca8cbaf750e4/01.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/bd/d6/2c/bdd62c79-5f27-a5ae-f8c6-e8eb7b8fc715/02.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6e/7e/ab/6e7eab7f-72f1-3df6-f6e8-28b336756122/03.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f7/cb/fc/f7cbfc60-b545-f60b-a6e6-14c2443575dd/04.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/55/89/57/5589572e-09f1-4e93-950b-64d18516a266/05.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/42/f9/7c/42f97c3c-c85f-f956-19ab-bdcf97645334/06.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/3d/dc/95/3ddc958d-5679-6dfb-69db-37f431799a39/07.png/1242x2688.png)

## Conversion Calculator ! Rating Breakdown in United States
- 5 stars: 10,444 (79%)
- 4 stars: 1,377 (10%)
- 3 stars: 537 (4%)
- 2 stars: 201 (2%)
- 1 stars: 583 (4%)

## Conversion Calculator ! Reviews in United States

### ***** "Uso de la APP"
Estoy empezando a usar la APP sería más eficiente eliminar las publicaciones ya que me distraen al momento de usarlas.
-- D. Roca, 2024-12-27

### *---- "Too many ads"
Can’t do anything without an ad
-- SimpleeMe, 2024-12-23

### ****- "This app is great."
Great app.
-- Rokaz71, 2024-12-21

### ***** "Conversor"
Es magnífico tener a la mano un convertidor tan completo
-- regio 1480, 2024-12-13

### ***** "Helpful"
This is my go to app for conversions, especially when they’re complex
-- ultra9000, 2024-12-13

### ***-- "ADS"
So many ads! But great math.
-- love it easy, 2024-12-10

### ***** "Great App"
Always able to answer my queries.
-- RDtrapper, 2024-12-10

### *---- "What a joke!"
Ad pops up every time you touch the screen. Deleted it in 30 seconds!
-- bud4u2, 2024-12-09

### ***** "Good resort excellent Tool"
Excelled Tool good job
-- Frmjunior, 2024-11-27

### ***** "I loved"
It’s perfect!!!!
-- Marce Gr, 2024-11-26

### ***** "More than I expected!"
This APP does absolutely everything with things I would not have thought, such as bandwidth, area and volume.  I was just looking for something to make conversions from metric to standard and vice versa.
-- The Very Best Reviews, 2024-11-22

### ***** "Units"
Easy to use and converts and converts to many units at one.
-- AVG56, 2024-11-02

### *---- "Horrible!!"
You have to pay for almost everything
-- Minfereena, 2024-10-30

### ***** "Great"
I often use odd units being in aerospace and also often don’t have internet connectivity. This app fills the gap perfectly.
-- meoftheus, 2024-10-15

### ***** "Great app"
Great app, but with way too many add when it’s free.
-- Subway customer, 2024-10-06

### *---- "Bad"
You can hardly touch this app without getting an ad! I gave up after less than 5 mins. I got 4 ads. Each time you change you get an ad!
-- 007$&@987653, 2024-09-30

### **--- "Too many ads"
Convert (adds) 6mm (addds) to fractional (adddds) inches.
-- notyouropinion, 2024-09-22

### ****- "Retired engineer"
Very useful for everyone needs
-- carmigardo, 2024-09-22

### ***-- "Good but expensive"
I like this app. It has the units I need. But $39.99 is too expensive for just removing ads.
-- inshin-us, 2024-09-11

### ***** "Easy to use."
It’s easy to use.
-- Ark-Rzrbks, 2024-09-05

[View all Conversion Calculator ! reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Conversion Calculator ! In-App Purchases
| Item | Price |
|------|-------|
| Remove Ads 1y | $0.99 |
| Premium 1 year | $4.99 |
| Premium 1 month | $1.99 |
| Currency Converter 1y | $1.99 |
| Convert all units + No ads | $39.99 |
| Conversion of shoe sizes 1y | $1.99 |
| Conversion angles, forces 1y | $1.99 |
| Conversion clothing sizes 1y | $0.99 |
| Conversion liquids/volumes 1y | $0.99 |
| Conversion Calculator Pro - 1y | $19.99 |

## Conversion Calculator ! Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Grossing | Colombia | Travel | #30 |
| Top Grossing | Czechia | Travel | #38 |
| Top Grossing | Chile | Travel | #42 |
| Top Grossing | Algeria | Travel | #43 |
| Top Grossing | Argentina | Travel | #46 |
| Top Grossing | Ecuador | Travel | #52 |
| Top Grossing | United Arab Emirates | Travel | #53 |
| Top Grossing | Dominican Republic | Travel | #54 |
| Top Grossing | Switzerland | Travel | #61 |
| Top Grossing | Peru | Travel | #62 |
| Top Grossing | Nigeria | Travel | #67 |
| Top Grossing | Mexico | Travel | #76 |
| Top Grossing | India | Travel | #77 |
| Top Grossing | Pakistan | Travel | #83 |
| Top Grossing | Kuwait | Travel | #96 |
| Top Free | Dominican Republic | Travel | #290 |
| Top Free | Chile | Travel | #381 |
| Top Free | Philippines | Travel | #412 |
| Top Free | Mexico | Travel | #427 |

## Conversion Calculator ! Discovered Keywords
- fuel log
- mpg calculator
- hours calculator
- weight converter
- unit converter
- currency converter
- calculator
- military time
- kitchen calculator
- unit converter app

## Apps Similar to Conversion Calculator !
- [AutoCAD](https://apptail.io/app/autocad-jO/united-states)
- [Umrechner - Einheit & Währung](https://apptail.io/app/umrechner-einheit-wahrung-sdf/united-states)
- [电工计算器](https://apptail.io/app/app-QTg/united-states)
- [Conversion Calculator Plus](https://apptail.io/app/conversion-calculator-plus-Smj/united-states)
- [ClevCalc - Calculator](https://apptail.io/app/clevcalc-calculator-hHl/united-states)
- [OneCalc: All-in-one Calculator](https://apptail.io/app/onecalc-all-in-one-calculator-wGn/united-states)
- [Converter AM](https://apptail.io/app/converter-am-GRq/united-states)
- [Calcularium](https://apptail.io/app/calcularium-npN/united-states)
- [Fraction Calculator Plus #1](https://apptail.io/app/fraction-calculator-plus-1-hWN/united-states)
- [CONVERT UNITS](https://apptail.io/app/convert-units-yBfc/united-states)

## Conversion Calculator ! Available In
- [United States](https://apptail.io/app/conversion-calculator-ddb/united-states)
- [Mexico](https://apptail.io/app/conversion-calculator-ddb/mexico)
- [Canada](https://apptail.io/app/conversion-calculator-ddb/canada)
- [United Kingdom](https://apptail.io/app/conversion-calculator-ddb/united-kingdom)
- [France](https://apptail.io/app/conversion-calculator-ddb/france)
- [Italy](https://apptail.io/app/conversion-calculator-ddb/italy)
- [Germany](https://apptail.io/app/conversion-calculator-ddb/germany)
- [Spain](https://apptail.io/app/conversion-calculator-ddb/spain)
- [Australia](https://apptail.io/app/conversion-calculator-ddb/australia)
- [Switzerland](https://apptail.io/app/conversion-calculator-ddb/switzerland)
- [Colombia](https://apptail.io/app/conversion-calculator-ddb/colombia)
- [Chile](https://apptail.io/app/conversion-calculator-ddb/chile)
- [Philippines](https://apptail.io/app/conversion-calculator-ddb/philippines)
- [Malaysia](https://apptail.io/app/conversion-calculator-ddb/malaysia)
- [Argentina](https://apptail.io/app/conversion-calculator-ddb/argentina)
- [India](https://apptail.io/app/conversion-calculator-ddb/india)
- [Hong Kong SAR China](https://apptail.io/app/conversion-calculator-ddb/hong-kong)
- [Dominican Republic](https://apptail.io/app/conversion-calculator-ddb/dominican-republic)
- [Belgium](https://apptail.io/app/conversion-calculator-ddb/belgium)
- [Austria](https://apptail.io/app/conversion-calculator-ddb/austria)
- [Ecuador](https://apptail.io/app/conversion-calculator-ddb/ecuador)
- [Peru](https://apptail.io/app/conversion-calculator-ddb/peru)
- [Singapore](https://apptail.io/app/conversion-calculator-ddb/singapore)
- [Panama](https://apptail.io/app/conversion-calculator-ddb/panama)
- [New Zealand](https://apptail.io/app/conversion-calculator-ddb/new-zealand)
- [Ireland](https://apptail.io/app/conversion-calculator-ddb/ireland)
- [Honduras](https://apptail.io/app/conversion-calculator-ddb/honduras)
- [Nigeria](https://apptail.io/app/conversion-calculator-ddb/nigeria)
- [United Arab Emirates](https://apptail.io/app/conversion-calculator-ddb/united-arab-emirates)
- [Ghana](https://apptail.io/app/conversion-calculator-ddb/ghana)
- [South Africa](https://apptail.io/app/conversion-calculator-ddb/south-africa)
- [Netherlands](https://apptail.io/app/conversion-calculator-ddb/netherlands)
- [Thailand](https://apptail.io/app/conversion-calculator-ddb/thailand)
- [Indonesia](https://apptail.io/app/conversion-calculator-ddb/indonesia)
- [Taiwan](https://apptail.io/app/conversion-calculator-ddb/taiwan)
- [Pakistan](https://apptail.io/app/conversion-calculator-ddb/pakistan)
- [Sweden](https://apptail.io/app/conversion-calculator-ddb/sweden)
- [Brazil](https://apptail.io/app/conversion-calculator-ddb/brazil)
- [Saudi Arabia](https://apptail.io/app/conversion-calculator-ddb/saudi-arabia)
- [Norway](https://apptail.io/app/conversion-calculator-ddb/norway)
- [Luxembourg](https://apptail.io/app/conversion-calculator-ddb/luxembourg)
- [China](https://apptail.io/app/conversion-calculator-ddb/china)
- [Türkiye](https://apptail.io/app/conversion-calculator-ddb/turkey)
- [Uruguay](https://apptail.io/app/conversion-calculator-ddb/uruguay)
- [Portugal](https://apptail.io/app/conversion-calculator-ddb/portugal)
- [Bulgaria](https://apptail.io/app/conversion-calculator-ddb/bulgaria)
- [Vietnam](https://apptail.io/app/conversion-calculator-ddb/vietnam)
- [Algeria](https://apptail.io/app/conversion-calculator-ddb/algeria)
- [Sri Lanka](https://apptail.io/app/conversion-calculator-ddb/sri-lanka)
- [Senegal](https://apptail.io/app/conversion-calculator-ddb/senegal)
- [Greece](https://apptail.io/app/conversion-calculator-ddb/greece)
- [Kenya](https://apptail.io/app/conversion-calculator-ddb/kenya)
- [Kuwait](https://apptail.io/app/conversion-calculator-ddb/kuwait)
- [Hungary](https://apptail.io/app/conversion-calculator-ddb/hungary)
- [Poland](https://apptail.io/app/conversion-calculator-ddb/poland)
- [Romania](https://apptail.io/app/conversion-calculator-ddb/romania)
- [Paraguay](https://apptail.io/app/conversion-calculator-ddb/paraguay)
- [Nepal](https://apptail.io/app/conversion-calculator-ddb/nepal)
- [Egypt](https://apptail.io/app/conversion-calculator-ddb/egypt)
- [Japan](https://apptail.io/app/conversion-calculator-ddb/japan)
- [Israel](https://apptail.io/app/conversion-calculator-ddb/israel)
- [Angola](https://apptail.io/app/conversion-calculator-ddb/angola)
- [Uganda](https://apptail.io/app/conversion-calculator-ddb/uganda)
- [Denmark](https://apptail.io/app/conversion-calculator-ddb/denmark)
- [Ukraine](https://apptail.io/app/conversion-calculator-ddb/ukraine)
- [South Korea](https://apptail.io/app/conversion-calculator-ddb/south-korea)
- [Bahrain](https://apptail.io/app/conversion-calculator-ddb/bahrain)
- [Jordan](https://apptail.io/app/conversion-calculator-ddb/jordan)
- [Iceland](https://apptail.io/app/conversion-calculator-ddb/iceland)
- [Qatar](https://apptail.io/app/conversion-calculator-ddb/qatar)
- [Czechia](https://apptail.io/app/conversion-calculator-ddb/czechia)
- [Mali](https://apptail.io/app/conversion-calculator-ddb/mali)
- [Lebanon](https://apptail.io/app/conversion-calculator-ddb/lebanon)
- [Macao SAR China](https://apptail.io/app/conversion-calculator-ddb/macau)
- [North Macedonia](https://apptail.io/app/conversion-calculator-ddb/north-macedonia)
- [Oman](https://apptail.io/app/conversion-calculator-ddb/oman)
- [Croatia](https://apptail.io/app/conversion-calculator-ddb/croatia)
- [Malta](https://apptail.io/app/conversion-calculator-ddb/malta)
- [Cyprus](https://apptail.io/app/conversion-calculator-ddb/cyprus)
- [Namibia](https://apptail.io/app/conversion-calculator-ddb/namibia)
- [Russia](https://apptail.io/app/conversion-calculator-ddb/russia)
- [Slovakia](https://apptail.io/app/conversion-calculator-ddb/slovakia)
- [Madagascar](https://apptail.io/app/conversion-calculator-ddb/madagascar)
- [Slovenia](https://apptail.io/app/conversion-calculator-ddb/slovenia)
- [Mauritius](https://apptail.io/app/conversion-calculator-ddb/mauritius)
- [Uzbekistan](https://apptail.io/app/conversion-calculator-ddb/uzbekistan)
- [Azerbaijan](https://apptail.io/app/conversion-calculator-ddb/azerbaijan)
- [Jamaica](https://apptail.io/app/conversion-calculator-ddb/jamaica)
- [Brunei](https://apptail.io/app/conversion-calculator-ddb/brunei)
- [Estonia](https://apptail.io/app/conversion-calculator-ddb/estonia)
- [Finland](https://apptail.io/app/conversion-calculator-ddb/finland)
- [Armenia](https://apptail.io/app/conversion-calculator-ddb/armenia)
- [Latvia](https://apptail.io/app/conversion-calculator-ddb/latvia)
- [Lithuania](https://apptail.io/app/conversion-calculator-ddb/lithuania)
- [Kazakhstan](https://apptail.io/app/conversion-calculator-ddb/kazakhstan)
- [Tunisia](https://apptail.io/app/conversion-calculator-ddb/tunisia)
- [Barbados](https://apptail.io/app/conversion-calculator-ddb/barbados)
- [Bermuda](https://apptail.io/app/conversion-calculator-ddb/bermuda)
- [Belarus](https://apptail.io/app/conversion-calculator-ddb/belarus)
- [Belize](https://apptail.io/app/conversion-calculator-ddb/belize)
- [Suriname](https://apptail.io/app/conversion-calculator-ddb/suriname)
- [Cayman Islands](https://apptail.io/app/conversion-calculator-ddb/cayman-islands)
- [Grenada](https://apptail.io/app/conversion-calculator-ddb/grenada)

---

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