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10+ Best Conversion Calculator Units Alternatives for iPhone (2026)

Conversion Calculator Units is S tier, #5 of the 19 tiered apps in unit conversion. Here is everything that competes with it on iPhone, in tier order.

All 18 alternatives, in tier order

  1. 1
    Free + IAP · ★ 4.6 · 67,673 ratings · score 95
    Converts measurements, currencies and clothing sizes, with live exchange rates and a built-in calculator.
  2. 2
    Free download · ★ 4.8 · 25,199 ratings · score 94
    Converts units across weight, length, temperature, area, volume, speed, time, angle and pressure, plus currencies.
  3. 3
    Free + IAP · ★ 4.7 · 23,565 ratings · score 94
    Unit and currency converter with a built-in calculator, offline rates, and rate charts across 685 units and many.
  4. 4
    Free + IAP · ★ 4.8 · 114,199 ratings · score 93
    Converts between 160+ currencies and many physical units, with a favorites list and offline use of saved currency rates.
  5. 5
    Free + IAP · ★ 4.6 · 26,029 ratings · score 93
    Unit converter with 16 categories, custom unit lists per category, and live exchange rates for 148 world currencies.
  6. 7
    Free + IAP · ★ 4.4 · 200,411 ratings · score 90
    Free calculator with scientific functions, unit and currency conversion, and a world clock for iPhone, iPad and Apple.
  7. 8
    Free + IAP · ★ 4.7 · 2,642 ratings · score 88
    Unit converter covering 31 categories, including length, weight, temperature, dates, number systems and ring sizes.
  8. 9
    Free + IAP · ★ 4.6 · 30,487 ratings · score 88
    Calculator and unit converter with a history tape, expression view, 500+ units and an Apple Watch extension.
  9. 10
    Free download · ★ 4.6 · 7,898 ratings · score 87
    Free calculator app with 40+ calculators and unit converters covering finance, health, date and time, construction.
  10. 11
    Free + IAP · ★ 4.8 · 403,031 ratings · score 87
    Converts between units across 20 categories, including currency with daily exchange rate updates.
  11. 12
    Free download · ★ 4.6 · 85,091 ratings · score 77
    Converts units across 51 categories, using type-ahead search by unit name or abbreviation.
  12. 13
    $9.99 · ★ 4.8 · 12,600 ratings · score 70
    Converts units across 53 categories, with type-ahead unit search and automatic category selection.
  13. 14
    Free + IAP · ★ 4.7 · 4,643 ratings · score 64
    Unit and currency converter with calculators for mortgage, loan, tip, fuel consumption and other everyday tasks.
  14. 15
    Free + IAP · ★ 4.7 · 3,370 ratings · score 62
    Unit converter for length, weight, temperature, speed, data, volume, area and time, with optional currency rates.
  15. 16
    $19.99 · ★ 4.8 · 14,092 ratings · score 62
    Converts 12 categories of units and 155 world currencies, with currency rates refreshed every 15 minutes while the app.
  16. 17
    Free + IAP · ★ 4.7 · 32 ratings · score 60
    Converts units across 30+ categories and includes a reference of 180+ physical constants, offline and ad-free.
  17. 18
    Free + IAP · ★ 4.8 · 4,696 ratings · score 60
    Calculator app for U.S. And metric unit conversions, weight, geometry and dimensional math on iPhone and iPad.
  18. 19
    Free + IAP · ★ 4.7 · 2,860 ratings · score 58
    Unit and currency converter with customizable lists, 24 conversion types and saved offline currency rates.

Questions people ask

What is the best alternative to Conversion Calculator Units on iPhone?
Unit Converter - Convert all, S tier, #1 in unit conversion.
Is there a free alternative to Conversion Calculator Units?
Yes: Unit Converter - Convert all (S tier, #1) is free to download, with in-app purchases.
Does anything rank above Conversion Calculator Units?
Yes. 4 apps rank above it in unit conversion: Unit Converter - Convert all (#1), Metric Conversion tool (#2), Conversion Calculator Plus (#3) and more.

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