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Dev tools · alternatives · 2026

24 alternatives to UnitAuthority

Convert between metric and imperial units instantly

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Convert kg ⇄ lbs, tbsp ⇄ ml, °C ⇄ °F — instantly

    2025 · unitvaults.com · its alternatives →

  2. 2

    Online metric & imperial conversion - metric-converter.com

    2025 · metric-converter.com · its alternatives →

  3. 3

    Free Unit Converter - Convert Any Unit Instantly

    2025 · everyunitconverter.com · its alternatives →

  4. 4

    Convert any unit. No clutter, just the answer.

    Jun 2026 · theconversionatlas.com · its alternatives →

  5. 5

    Free online unit converter & calculator tool

    2025 · its alternatives →

  6. 6
    UnitSwap▲124

    Convert measurements or units with ease

    2024 · unitswap.net · its alternatives →

  7. 7

    An all-in-one converter, calculator & smart utility tool

    2025 · its alternatives →

  8. 8

    Convert your weight into corgis, bananas, black holes, and more. Ditch metric and imperial and use objects!

    2024 · scientific.place · its alternatives →

  9. 9

    Unit Converter : Measurement Converter for Length, Weight

    2019 · easyunitconverter.com · its alternatives →

  10. 10

    Free and Instant unit conversions

    May 2026 · quickconvertunits.com · its alternatives →

  11. 11

    Unit Converter: Easily convert kJ to calories.

    Jan 2026 · play.google.com · its alternatives →

  12. 12

    For All Type of Online Calculator & Metric Conversions.

    2020 · chromewebstore.google.com · its alternatives →

  13. 13

    Modern & historic units converter

    2025 · universalconverter.lovable.app · its alternatives →

  14. 14

    A quick way to convert Kilograms to Pounds

    Apr 2026 · bestmetricconversion.com · its alternatives →

  15. 15

    The unit converter that actually explains the conversion

    May 2026 · unitformula.com · its alternatives →

  16. 16

    Fast, accurate conversions. No ads. No tracking. Ever.

    Mar 2026 · its alternatives →

  17. 17

    Free online converter for 80+ units & 140+ currencies

    May 2026 · unit-converter.co · its alternatives →

  18. 18

    For All Type of Online Calculations & Metric Conversions.

    2022 · easyunitconverter.com · its alternatives →

  19. 19

    Convert anything -instantly, right from your Chrome browser.

    Oct 2025 · chromewebstore.google.com · its alternatives →

  20. 20

    Free online unit converter calculator

    2025 · its alternatives →

  21. 21

    To convert length, weight, area, volume, temperature.

    Jun 2026 · geteasetools.com · its alternatives →

  22. 22

    Fast and easy to use currency and units converter

    2017 · play.google.com · its alternatives →

  23. 23

    Convert weight <> volume in this cooking unit converter

    2020 · apps.apple.com · its alternatives →

  24. 24

    calculator,Cooking, Weight, Length, Speed, Currency, Volume

    2021 · play.google.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →