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Home › Everyday › Unit Converter

Unit Converter

By the CalcMundi team · Updated October 22, 2026 · Formulas checked against standard financial math

Pick a type of measurement, enter a value and see it in every other unit.

Common conversions

  • 1 inch = 2.54 cm · 1 foot = 30.48 cm · 1 mile = 1.609 km
  • 1 pound = 453.6 g · 1 ounce = 28.35 g
  • °F = °C × 1.8 + 32 · °C = (°F − 32) ÷ 1.8
  • 1 US gallon = 3.785 liters · 1 acre = 4,047 m²

Frequently asked questions

US or imperial gallons?

We use US gallons (3.785 L). The UK imperial gallon is 4.546 L.

See also

Gas Cost CalculatorFuel cost for your trip, split per personProportion CalculatorSolve A/B = C/X, direct or inverseSquare Footage CalculatorArea of rooms, floors and lotsPaint CalculatorGallons of paint for your room

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Free for blogs, real estate agents, brokers and any site. Paste this code where you want the calculator to appear. It adjusts its height on its own.

Results are estimates for information only and are not financial, legal or medical advice. Rates, taxes and fees vary — confirm with a professional or your lender.