Alternatives

Products that do what UnitMaster does

The most beautiful and accurate unit converter on the web.

1. 1IM
   I made a web-based notepad with a built in unit calculator▲488

   Hi HN It also supports percentages, dates and variables. I've been working on this alone for a few years now, so would love to get some feedback.

   2022 · numpad.io

2. 2
   ConvertCalculator 2.0▲148

   Create powerful, beautiful Calculator forms

   2019

3. 3
   UnitSwap▲124

   Convert measurements or units with ease

   2024

4. 4
   Unit Converter Pro - currency and units converter▲80

   Fast and easy to use currency and units converter

   2017

5. 5
   UnitMaster — Global Unit Converter

   Convert 40+ units instantly. Simple, fast, and mobile-first.

   Nov 2025 · nicheworks.pages.dev

6. 6
   UnitConversion▲82

   An all-in-one unit converter in 6 languages

   2018

7. 7
   Unitor▲114

   Quickly compare unit prices while shopping smarter.

   2025

8. 8
   UnitConvertNow▲7

   Free, fast, and accurate online unit converter

   2025

9. 9
   HoverConvert▲88

   Instant Hover Unit Converter

   Dec 2025

10. 10
    UnitToolbox - Universal Unit Converter▲6

    Instant unit conversions for work, study & everyday life

    2025

11. 11
    Ultimate Unit Converter Pro▲2

    100+ free unit conversions in one fast online calculator

    Jul 2026 · globaltoolsbox.online

12. 12
    CalculatorBit▲13

    Free online calculator & unit converter

    2025

13. 13
    Units Converter▲16

    calutalor tht every one need

    Jul 2026 · unitsconverter.in

14. 14
    Free Unit Converter▲5

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

    Mar 2026

15. 15
    ToolMasteryHub▲7

    Smart online tools | calculators, converters, generators

    2025

16. 16
    unitskit▲12

    calculator

    2025

17. 17
    Unit Converter Pro▲3

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

    Jul 2026 · apps.apple.com

18. 18
    Unitvio▲4

    The unit converter the internet deserved since 2005

    Jun 2026 · unitvio.com

19. 19
    Universal Unit Converter▲6

    Simple, fast, and free unit converter for everyday use

    Jan 2026 · units.ashwinig.com

20. 20
    UltraConverter▲11

    AI-powered multilingual unit conversion tool

    2025

21. 21
    PercentMaster

    Free calculators & utilities in your browser - no signup

    Apr 2026 · percentmaster.com

22. 22WB
    We built the simplest Online Unit Converter for everyday use▲8

    Features: 200+ unit converters in Area, Length, Mass, Speed, Temperature, and Time categories; Precision: up to 28 decimal places; Conversion formulas with examples; Neat UI with light/dark theme. Enjoy using it.

    2024 · betaconvert.com

23. 23
    Calcule▲8

    Free online unit converter calculator

    2025

24. 24
    UnitConverters on Chrome▲8

    Convert anything -instantly, right from your Chrome browser.

    Oct 2025

Ranked by how close each launch is in meaning, then by votes. Refine with a description →