---
title: "Unit Converter & Calculator! - Reviews, Revenue and Downloads in Nigeria | Apple App Store"
description: "Unit Converter: convert any measurement, currency or size in one tap.  IN SHORT A fast, offline unit converter that turns any measurement, currency or clothing size into the answer you need — with liv"
---

# Unit Converter & Calculator! — Nigeria
> Metric Conversion & Imperial

![Unit Converter & Calculator! App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/3b/ee/d3/3beed33f-3eb5-17ef-2e73-d381fe2d0f43/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:** 4.5/5 (221 ratings)
**Price:** Free
**Bundle ID:** com.olivier.convertItFree
**Store:** Apple App Store
**Country:** Nigeria
**Version:** 3.0.22 (released 2026-08-07)
**Original Release:** 2011-02-21
**Languages:** Spanish, German, Chinese, French, Hindi, English, Italian, Thai

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

## Unit Converter & Calculator! Description
Unit Converter: convert any measurement, currency or size in one tap.

IN SHORT
A fast, offline unit converter that turns any measurement, currency or clothing size into the answer you need — with live exchange rates and a built-in calculator. If you can use a calculator, you can use this.

WHO IT'S FOR
Cooks, contractors, DIY-ers, students, travelers and anyone who needs a quick, precise conversion. Also handy for engineers, nurses and online shoppers comparing international sizes.

WHAT YOU GET
• 18+ categories in one place — weight, length, temperature, volume, speed, area, time, data, energy and more.
• Live currency conversion — real-time exchange rates, updated automatically.
• A real calculator built in — type an expression and convert the result instantly.
• Works offline — every unit (except live rates) converts with no connection.

HOW IT WORKS
1) Pick a category from the icon grid.
2) Tap the two units you want and type a value — or a full calculation.
3) Read the precise result instantly, to the number of decimals you choose.

KEY FEATURES
• Currency — live forex rates for USD, EUR, GBP, JPY and more, plus crypto.
• Weight & mass — oz, lb, kg, g, mg, stone, metric tons.
• Length & distance — miles, km, yards, meters, feet, inches, cm, mm.
• Temperature — Celsius, Fahrenheit, Kelvin, Réaumur, Rankine.
• Volume — cups, tbsp, tsp, pints, gallons, liters and metric volumes.
• Clothing & shoe sizes — men, women, kids and babies, across countries.
• Plus speed, area, pressure, data, energy, fuel and angle.

WHY IT HELPS
Most people find the unit they need in a couple of taps and never open a second app. Rates stay current, so a EUR→USD check is accurate to the day.

FAQ
Q: What is it, in one line?
A: A unit converter that turns any measurement, currency or size into a precise result using a built-in calculator.

Q: Does it work without internet?
A: Yes — all units convert offline. Only live currency rates need a connection to refresh.

Q: Can it convert currencies in real time?
A: Yes, exchange rates update automatically so conversions reflect the current market.

DOWNLOAD AND CONVERT
Pick a category and get your first conversion in seconds.

Naturally, this app helps with unit conversion, the metric system, imperial units, currency exchange, cooking measurements and clothing sizes.

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
- Currency pack - 1-year non-renewal - USD 0.99
- Sciences pack - 1-year non-renewal - USD 1.99
- Shoes pack - 1-year non-renewal - USD 1.99
- Clothes pack - 1-year non-renewal - USD 0.99
- Kitchen pack - 1-year non-renewal - USD 0.99
- Remove ads pack - 1-year non-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

## Unit Converter & Calculator! Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/85/c5/c5/85c5c51b-5dc8-efde-f8da-a739beb0bf05/01.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ca/19/37/ca19373f-1174-6158-41c8-528ecc59e097/02.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/14/dd/67/14dd674a-941e-b3f2-5629-30935ae1a672/03.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/78/94/44/789444e1-f782-6999-356a-9dadbce26fdc/05.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/14/de/b6/14deb6a0-1af9-1781-cd14-8834560541a3/04.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c0/50/13/c050137f-c116-0555-5297-f9ade7d7d288/07.png/1284x2778.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/8d/e4/3c/8de43c78-01b8-1825-229e-2b219e79089e/06.png/1284x2778.png)

## Unit Converter & Calculator! Rating Breakdown in Nigeria
- 5 stars: 164 (74%)
- 4 stars: 35 (16%)
- 3 stars: 9 (4%)
- 2 stars: 4 (2%)
- 1 stars: 9 (4%)

## Unit Converter & Calculator! Reviews in Nigeria

### ***** "On the Spot app"
Very easy to use and it gives precise results
-- ATUEGWU, 2025-02-24

### ***** "Impressive Features"
I think I like the false tires and that alone makes me anticipate a satisfactory use!
-- Walgantee, 2025-01-21

### ***-- "Wide range of Units to pick from"
Contains most of the units needed on a daily basis
-- Tmextemi, 2024-11-07

### *---- "Too much ad"
There is an ad for each click i make. Verry annoying
-- King_Moe6, 2023-11-26

### *---- "I hate the fact that this app is so money consuming and I also would like it if they added algebra"
So pls do
-- Araluchinedu, 2023-02-13

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

## Unit Converter & Calculator! In-App Purchases
| Item | Price |
|------|-------|
| Remove Ads 1y | 1,500.00 ₦ |
| Premium 1 year | 1,850.00 ₦ |
| Premium 1 month | 310.00 ₦ |
| Currency Converter 1y | 3,200.00 ₦ |
| Conversion of shoe sizes 1y | 3,200.00 ₦ |
| Unit Converter Premium - 1y | 1,250.00 ₦ |
| All unit conversion + No ads | 3,700.00 ₦ |
| Conversion angles, forces 1y | 3,200.00 ₦ |
| Conversion clothing sizes 1y | 1,500.00 ₦ |
| Conversion liquids/volumes 1y | 1,500.00 ₦ |
| Get premium | 1,250.00 ₦ |

## Unit Converter & Calculator! Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Grossing | Nigeria | Travel | #18 |
| Top Grossing | Peru | Travel | #26 |
| Top Grossing | Italy | Travel | #42 |
| Top Grossing | Algeria | Travel | #46 |
| Top Grossing | Dominican Republic | Travel | #49 |
| Top Grossing | Ecuador | Travel | #52 |
| Top Grossing | Colombia | Travel | #53 |
| Top Grossing | France | Travel | #66 |
| Top Grossing | Chile | Travel | #74 |
| Top Grossing | Germany | Travel | #84 |
| Top Grossing | Pakistan | Travel | #87 |
| Top Grossing | Argentina | Travel | #89 |
| Top Grossing | Malaysia | Travel | #91 |
| Top Grossing | India | Travel | #92 |
| Top Grossing | Mexico | Travel | #92 |
| Top Grossing | South Africa | Travel | #97 |
| Top Grossing | Kuwait | Travel | #100 |

## Unit Converter & Calculator! Discovered Keywords
- mpg
- fuel mpg
- fuel log
- mpg calculator
- pilot time
- unit converter
- money calculator converter
- unit calculator
- free unit converter
- unit convert

## Apps Similar to Unit Converter & Calculator!
- [Umrechner - Einheit & Währung](https://apptail.io/app/umrechner-einheit-wahrung-sdf/nigeria)
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- [Conversion Calculator Plus](https://apptail.io/app/conversion-calculator-plus-Smj/nigeria)
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- [Converter AM](https://apptail.io/app/converter-am-GRq/nigeria)
- [Fraction Calculator Plus #1](https://apptail.io/app/fraction-calculator-plus-1-hWN/nigeria)
- [MeasureOn](https://apptail.io/app/measureon-OBP/nigeria)
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## Unit Converter & 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)
- [Thailand](https://apptail.io/app/conversion-calculator-ddb/thailand)
- [Netherlands](https://apptail.io/app/conversion-calculator-ddb/netherlands)
- [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)
- [Norway](https://apptail.io/app/conversion-calculator-ddb/norway)
- [Saudi Arabia](https://apptail.io/app/conversion-calculator-ddb/saudi-arabia)
- [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)
- [Algeria](https://apptail.io/app/conversion-calculator-ddb/algeria)
- [Vietnam](https://apptail.io/app/conversion-calculator-ddb/vietnam)
- [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)
- [Angola](https://apptail.io/app/conversion-calculator-ddb/angola)
- [Israel](https://apptail.io/app/conversion-calculator-ddb/israel)
- [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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