Unit Converter 2021 app icon

Apps Like Unit Converter 2021 for iPhone and iPad

Convert units with clear categories

Convert units between different systems with accurate results. Select units from a comprehensive list, input values, and receive instant conversions. Support multiple categories including length, weight, temperature, and more.

by 巧春 魏★ 4.7408 ratingsUtilitiesFreeData updated 2026-09-26

Unit Converter 2021 screenshots

Ranked alternatives

Showing 1–20 of 1,000 ranked alternatives.

  1. Unit Converters in ft lb oz app icon

    Unit Converters in ft lb oz

    SHIGETO TAKAGI

    Convert units with simple input

    Convert temperature, speed, length, weight, and capacity units. Input numbers to get instant results.

    ★ 4.6130 ratingsProductivityFreeData updated 2026-09-08
  2. Unit Converter - Best Unit App app icon

    Unit Converter - Best Unit App

    Alan Mrvica

    Convert units with simple design.

    The app offers a unit converter with 20 categories and numerous units, including live currency updates for 155 world currencies. It converts angle, area, data, energy, length, temperature, time, volume, weight, and more.

    ★ 4.8193,915 ratingsTravelFreeData updated 2026-10-12
  3. Conversion Calculator Units app icon

    Conversion Calculator Units

    RV AppStudios LLC

    Convert across 12 categories

    Convert across 12 categories and 140+ . Tap to select , swipe to switch values. Adjust options easily. View results instantly without complex steps.

    ★ 4.74,965 ratingsUtilitiesFreeData updated 2026-09-08
  1. US Unit Converter - Easy way ! app icon

    US Unit Converter - Easy way !

    kazuhiko kuroda

    Convert units with finger slide.

    The app converts units for height, weight, temperature, distance, and liquid volume. Users can also check their BMI by pressing a plus button.

    ★ 3.73 ratingsReferenceFreeData updated 2026-10-28
  2. Unit Converter HD. app icon

    Unit Converter HD.

    良峰 侯

    Convert units across 30 categories

    Convert units across 30 categories with over 700 measurement options. Switch between light and dark mode. Use a backspace key for quick edits. Perform conversions with straightforward interface.

    ★ 4.7644 ratingsUtilitiesFreeData updated 2026-09-08
  3. Metric Conversion tool app icon

    Metric Conversion tool

    Wight Hat Ltd

    Convert units, save time, stay accurate

    Convert units between 30,000+ conversions. Switch between 160+ currencies including cryptocurrencies with live rates. Save favorite conversions for quick access. Display results in fractions when applicable.

    ★ 4.814,630 ratingsReferenceFreeData updated 2026-09-16
  4. Calculator app icon

    Calculator

    The App Tower Inc.

    Calculate with 80 themes to choose

    A with customizable themes allows users to select from multiple visual styles. Perform basic and advanced calculations. Switch between light and dark modes. Adjust font size and color schemes.

    ★ 4.5146,123 ratingsUtilitiesFreeData updated 2026-09-08
  5. Unit Converter - Pro Units App app icon

    Unit Converter - Pro Units App

    Tue Nguyen Minh

    Convert , track rates, create lists

    Convert across 16 categories including angle, area, cooking, currency, data, length, mileage, power, pressure, speed, temperature, time, volume, weight, men's shoe size, and women's shoe size. Create custom lists.

    ★ 4.616,117 ratingsReferenceFreeData updated 2026-09-11
  6. Storage Smart Entry by Nokē app icon

    Storage Smart Entry by Nokē

    Noke Inc

    Access units with your smartphone

    Access unit doors using a smartphone. Scan a QR code to unlock. View access logs and manage permissions. Receive notifications for activity and security alerts.

    ★ 4.97,918 ratingsUtilitiesFreeData updated 2026-09-12
  7. Unit Converter: Mila's Tools app icon

    Unit Converter: Mila's Tools

    Scott DeSapio

    Convert units across 16 categories

    Convert units across 16 categories with instant results. Switch between metric, imperial, and other systems. Calculate conversions for length, weight, temperature, and more. Store frequently used values for quick access.

    ★ 4.81,395 ratingsUtilitiesFreeData updated 2026-09-08
  8. Weather .. app icon

    Weather ..

    Unicom TOV

    Check and forecast updates

    Displays current with minimum and maximum temperatures. Shows 72-hour and 10-day forecasts for global cities. Automatically detects location. Includes animated satellite maps with wind, rain, temperature, and cloud layers.

    ★ 4.521,024 ratingsWeatherFreeData updated 2026-11-02
  9. Unit Converter Pro HD. app icon

    Unit Converter Pro HD.

    良峰 侯

    Convert units across 30 categories

    Convert units across 30 categories with over 700 measurement options. Switch between light and dark modes. Use a backspace key for editing. Perform conversions quickly with an intuitive interface.

    ★ 4.6186 ratingsEducation$0.99Data updated 2026-09-08
  10. US Unit Converter app icon

    US Unit Converter

    Kei Suefuji

    Convert units between US and metric systems

    Convert units of length, weight, area, liquid volume, and temperature between US and metric systems. Select the category, input the value, and instantly convert to the desired .

    ★ 4.8101 ratingsUtilitiesFreeData updated 2026-09-06
  11. Unit Converter ++ app icon

    Unit Converter ++

    Nirav Patel

    Convert units between length, weight, temperature,

    Convert units of length, weight, temperature, volume, and speed. Switch between miles, kilometers, Celsius, Fahrenheit, gallons, liters, and more. Calculate conversions instantly and save frequently used units.

    ★ 1.610 ratingsUtilitiesFreeData updated 2026-09-09
  12. Convert Any Unit Lite app icon

    Convert Any Unit Lite

    Cider Software LLC

    Convert units with intelligent search.

    The app converts units with an autocomplete search. It automatically saves units to a selected list and includes a built-in calculator.

    ★ 4.748,174 ratingsTravelFreeData updated 2026-09-23
  13. Calculator HD: Big Buttons app icon

    Calculator HD: Big Buttons

    Studio Zebra

    Calculate with large, easy-to-read numbers

    A for with a large, easy-to-read display. Perform basic arithmetic operations. Use user-friendly controls for quick calculations.

    ★ 4.51,938 ratingsUtilitiesFreeData updated 2026-09-10
  14. Speedometer ⋙ app icon

    Speedometer ⋙

    Unicom TOV

    Track speed, odometer, and weather

    Track speed and trip data using GPS. Switch between km/h and mph. View odometer, average, and maximum speed. Check outside temperature and weather. Receive audio and visual alerts for speed limits. Use compass and customize display color.

    ★ 4.415,111 ratingsUtilitiesFreeData updated 2026-09-17
  15. Unit Converter - Convert all app icon

    Unit Converter - Convert all

    oWorld Software

    Convert currencies, weights, and units instantly

    Convert units for currency, weight, length, volume, and temperature. Input values and select units for instant . Access real-time currency rates. Share results or copy to clipboard for quick use.

    ★ 4.613,512 ratingsTravelFreeData updated 2026-09-08
  16. Unit Plus Converter app icon

    Unit Plus Converter

    Harjot Singh

    Convert units between categories with ease

    Convert units across multiple categories including area, data, fuel-milage, length, power, pressure, speed, temperature, time, volume, and weight-mass. Switch between units with a single tap. View conversion results and history.

    ★ 4.7569 ratingsUtilitiesFreeData updated 2026-09-19

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.