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Unit Converter - Convert all

Unit Converter - Convert all

Currency, Temperature, Length

13K ratings
515 reviews
With Ads#173 in top-grossing Travel
📊 Productivity
🔍 Reference
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • February 21, 2011
  • July 10, 2026

Features

Developer

oWorld Software
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Unit Converter - Convert all screenshot #8 for iPhone
iphone
ipad
🧾$0.99 - $29.99
In-App Purchase↘︎
📉no. 173
Charts↘︎
📌Ready
Reviews summary↘︎
⭐515
Reviews↘︎
📝40+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦~ in 1 week
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About

Easily convert between various units of measurement, including currencies, temperature, length, and weight. This intuitive tool provides real-time currency exchange rates and a comprehensive list of conversions for everyday use.

✓Real-time currency conversions
✓Extensive unit categories (weight, temp, length, volume, etc.)
✓Simple and intuitive interface
✓Supports international currencies
✓Includes time, speed, and IT units
✓Unlockable premium units
Show original description

What users say

Summarized from real user reviews of Unit Converter. Based on 13K reviews and a 4.6/5 average, it highlights the 7 positives and 6 negatives reviewers mention most about this Travel app.

Positive things

  • 🚀Easy to use
  • 🚀Comprehensive unit conversions
  • 👍Helpful app
  • 👍Practical for engineering and mechanics
  • 👍Intuitive interface
  • 👍Extremely useful
  • 👍Convenient and always available

Negative things

  • 🔍Too many ads
  • 🔍Ads make the app unusable
  • 🔍Ads are invasive and disrupt user experience
  • 💰Expensive subscription for ad-free version
  • 🐛Crashes and stability issues
  • 🔍Ads block access to features
See all reviews

What's New in Unit Converter

3.0.21

July 10, 2026

Bug fixes and performance improvements

Subscription plans

Get premium

No ads, all conversions and future updates.

$14.991 Year
7 Days trial
Price Updates
July 16, 2026→$14.99
June 26, 2026→$5.99
June 22, 2026→$9.99
June 19, 2026→$9.99
How to cancel Unit Converter subscription ⁉️
12

In-App Purchases

$0.99

Conversion clothing sizes 1y

Clothing sizes for top and bottom wear

Charts

Top Grossing

📉 173-8

Travel

This app dropped -8 positions in Travel chart.

Last updated on July 19, 2026.

User reviews

Most RecentHighest RatedLowest Rated

I can’t upgrade

I want to upgrade but app won’t let me login
caffrerrcaffrerr

Love love love

This app is the best. I use it to figure out what to charge for my paintings, how much product I use, converting German recipes.. all kind of this. Even money conversion in real time !! It’s the most useful app I have!!
AtlanticeyesAtlanticeyes

Very useful App.

I’ve found it be very useful to convert different measurements especially when travelling where units vary from home. Particularly wind speeds, temperature & weight. The currency converter is also brilliant.
Love it. ✅
MikeIDyerMikeIDyer

Easy and Comprehensive

The possible measurements for conversion should be enough for most people and the units to convert to are comprehensive.

Good that there is only one advert to navigate past.
The Northwood LairdThe Northwood Laird

Perfection

Perfect app for all your conversion needs. I use it all the time
tor_sorensentor_sorensen
See 510 more reviews

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User experience

🐞

Reported Bugs

3 issues

Conversion calculations are sometimes inaccurate

Bug

Inability to enter decimal values in some conversions

Bug

Compatibility issues with newer devices

Bug
✨

Requested Features

4 requests

Dark mode option

Feature

Favorites/frequently used units

Feature

Improved ad-supported free version

Feature

More customization options

Feature

FAQ

What does the Conversion Calculator app do?

This app functions as a comprehensive unit and currency converter. It allows users to easily convert between various units of weight, temperature, length, volume, time, speed, and more. It also provides real-time currency exchange rates for international currencies.

What are the key features of this conversion app?

Key features include real-time currency conversions with live exchange rates, a wide array of unit categories such as weight, temperature, length, and volume, and an intuitive interface for quick conversions. It also supports specialized units for IT, energy, and fuel consumption.

How much does the Conversion Calculator app cost?

The app is free to download and use, with ads displayed. Users can opt for 'Converter Premium' via an auto-renewable subscription to remove ads and unlock additional units. Subscription options include a 1-year renewal for $9.99 (with a 7-day free trial) or a 1-month renewal for $0.99.

What types of units can be converted?

The app supports a vast range of units including weight (ounces, pounds, kilograms), temperature (Celsius, Fahrenheit, Kelvin), length (miles, kilometers, feet, meters), volume (liters, gallons, cups), time, speed, computer memory, energy, fuel consumption, and electricity. It also includes currency conversions for major global currencies and cryptocurrencies.

Who would benefit from using this app?

This app is ideal for cooks, contractors, DIY enthusiasts, travelers, students, and anyone who frequently needs to convert measurements or currencies. Its ease of use and comprehensive conversion options make it a valuable tool for everyday tasks and international dealings.