---
title: "One Converter: Unit Calculator - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "The best measurement, unit, metric converter app for iOS!  Unit conversion tool that you may need in your daily life, in your lessons, and at work. With a simple, useful interface, you can convert any"
---

# One Converter: Unit Calculator — United States
> US Measurement & Converter Pro

![One Converter App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/d1/f4/a5/d1f4a593-c791-d8b1-db7f-cc40654ef896/AppIcon-0-1x_U007emarketing-0-7-0-85-220.png/400x400bb.png)

**Developer:** [Novvio](https://apptail.io/developer/novvio-rCq)
**Category:** Utilities
**Rating:** 2.0/5 (7 ratings)
**Price:** Free
**Bundle ID:** com.novvio.unit.converter
**Store:** Apple App Store
**Country:** United States
**Version:** 2.13 (released 2023-01-28)
**Original Release:** 2018-03-11

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1357652887)
**AppTail Page:** [https://apptail.io/app/one-converter-unit-calculator-hNmb/united-states](https://apptail.io/app/one-converter-unit-calculator-hNmb/united-states)

## One Converter Description
The best measurement, unit, metric converter app for iOS!

Unit conversion tool that you may need in your daily life, in your lessons, and at work. With a simple, useful interface, you can convert any unit you want to another unit and use it in your calculations. All you have to do is enter the category and choose the units to convert the amount. It's that simple!

You can easily convert commonly used units with our unit conversion tool. This app a universal unit converter and measure tool that can convert units of different categories.

- Length Converter:

Angstrom, Astronomic Unit, Centimeter, Chain, Fathom, Feet, Furlong, Inch, Kilometer, Light Year, Meter, Mile, Millimeter, Nautical Mile, Parsec, Yard

- Velocity (Speed) Converter:

Centimeters Per Hour / Per Minute / Per Second, Feet Per Hour / Per Minute / Per Second, Furlongs Per Fortnight, Inches Per Hour / Per Minute / Per Second, Kilometers Per Hour / Per Minute / Per Second, Knots, Light, March, Meters Per Hour / Per Minute / Per Second, Miles Per Hour / Per Minute / Per Second

- Temperature Converter:

Celsius, Fahrenheit, Kelvin, Rankine Raumur

- Mass (Weight) Converter:

Atomic Mass Unit, Drachm, Dram, Firkin, Grain, Gram, Hundred Weight, Kilogram, Milligram, Pennyweight, Quarter, Scruple, Short Hundredweight, Short Ton, Slug, Stone, Tonne, Troy Ounce, Troy Pound, UK Ton, US Ounce, US Pound

- Volume (Capacity) Converter:

Centiliters, Coffee Spon, Cubic Centimeter, Cubic Decimeter, Cubic Feet, Cubic Inch, Cubic Kilometer, Cubic Meter, Cubic Mile, Cubic Millimeter, Cubic Yard, Cup, Dashes, Deciliter, Drachm, Dram, Drop, Dry Barrel, Gallon, Liquid Barrel, Liter, Millimeter, Pinche, Tablespoon, Teaspoon, UK Bushel, UK Fluid Ounce, UK Gallon, UK Gill, UK Minim, UK Peck, UK Pint, UK Quart, US Bushel, US Fluid Ounce, US Gill, US Liquid Quard, US Minim, US Peck

- Angle Converter:

Circle, Degree, Gon, Grade, Mil, Minute, Nautical Rhumb, Quadrant, Radian, Revolution, Second, Turn

- Energy Converter:

BTU, Calorie, Electron Volt, Ergs, Foot Pound Force, Joule, Kilogram Force Meter, Kilowatt Hour, Newton Meter, Therm, Watt Hour

- Time Converter:

Blink, Century, Cesium133, Day, Decade, Fortnight, Hour, Lunar Year, Microfortnight, Microsecond, Millenia, Minute, Millisecond, Month, Nanosecond, Second, Sidereal Day, Sidereal Hour, Sidereal Minute, Sidereal Second, Sidereal Week, Sidereal Year, Tick, Week, Year

- Area Converter:

Acre, Barn, Hectare, Rood, Square Centimeter, Square Decimeter, Square Feet, Square Inch, Square Meter, Square Millimeter, Square Rod, Square Yard, Square Mile

- Computer Data Converter
- Female Shoe Size Converter
- Male Shoe Size Converter
- Speed Converter
- Power Converter

It is now effortless to translate between thousands of measurement units.

Unit Converter works entirely offline without the need for an internet connection. A measurement conversion tool is here to make your life easier. Download now for free.

## One Converter Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/10/ed/b5/10edb545-f6fb-26a0-2ae1-8dceb830815a/fc83b966-faed-454c-a2ef-73574bbfcbeb_1.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/71/d0/c3/71d0c3f3-4eef-29c1-abf4-00d5582cc69c/93168784-38a6-494e-a49d-08f255230dc6_2.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/03/b3/66/03b366ea-7646-d2b4-b614-cfc9225a19ca/54acbea4-7dfb-4751-90d1-ad1ea4b8933b_3.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/63/b9/0d/63b90d27-48fd-d571-45f9-6487689d5227/41762ee7-c156-4f3c-8678-608bf4d93174_4.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/68/65/8a/68658a4c-fe0e-1f9b-e71a-b35eaf57e476/e6b6e986-8497-4b57-aba1-bf8dcb8ca9d8_5.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/5b/e4/d7/5be4d7b2-d7db-36b8-f794-c091de099119/2c205a07-8c0e-4926-b125-1ac4df8ed01f_6.png/1242x2688.png)

## One Converter Rating Breakdown in United States
- 5 stars: 1 (14%)
- 4 stars: 1 (14%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 5 (71%)

## One Converter Reviews in United States

### ****- "Nice app."
Nice app. Would have given 5 stars but there is no way to enter a negative number for temperatures.   I haven’t checked all categories, but assume you can’t enter a negative number under any category.
-- Chas1510, 2021-06-11

### *---- "Really?"
I haven’t written a review good or bad for anything in years but, I gotta say, this is the worst thing I’ve ever seen. If you attempt to even try to convert any measurement, it goes right to add’s when you select which type of measurement you want and when it brings you back to see the results no changes are made and whatever you typed in has disappeared. So if anyone made money off of this app, then they are legit some very horrible people. I wouldn’t use it if I was paid to..... unless they pay a lot👍
-- captain lactose, 2020-09-18

### *---- "Not good"
It either works or it doesn’t. This one has been incorrect for me. Don’t bother.
-- tdilf, 2019-02-19

### *---- "Doesn’t work"
First conversion I did from kg to US pounds was wrong
-- Nickname_Steve, 2018-09-14

### *---- "Don’t install it"
This app is showing 1US oz is 290 grams, which is not right. Also it doesn’t let you enter the decimal
Value like 0.1 US oz to gm
-- Abansal90, 2018-06-28

[View all One Converter reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## One Converter In-App Purchases
| Item | Price |
|------|-------|
| Unit & Metric Converter Plus | $1.99 |
| Measurement Unit Converter Pro | $4.99 |
| Unit Conversion Calculator Pro | $5.99 |
| Unit Converter & Calculator | $3.99 |


## One Converter Discovered Keywords
- one converter
- unit calculator

## Apps Similar to One Converter
- [Unit Converter Calculator Pro](https://apptail.io/app/unit-converter-calculator-pro-ZZn/united-states)
- [Unit of measurement converter](https://apptail.io/app/unit-of-measurement-converter-FKo/united-states)
- [Units Converter Easy](https://apptail.io/app/units-converter-easy-MIs/united-states)
- [Unit Converter and Calculator.](https://apptail.io/app/unit-converter-and-calculator-Zyy/united-states)
- [Conversor](https://apptail.io/app/conversor-jNmb/united-states)
- [単位変換・換算計算機アプリ](https://apptail.io/app/app-sNmb/united-states)
- [單位換算器 匯率換算 貨幣轉換器 即時離線匯率計算機](https://apptail.io/app/app-AfUb/united-states)
- [Unit Converter ++](https://apptail.io/app/unit-converter-fzUb/united-states)
- [Easy Converter: Unit, currency](https://apptail.io/app/easy-converter-unit-currency-qCLd/united-states)
- [Volume Unit Converter](https://apptail.io/app/volume-unit-converter-elIk/united-states)

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

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*