Unit Converter
Enter a value to see the conversion.
Convert length, weight, temperature, volume, and area instantly | 100% Private
Uses internationally defined exact factors (e.g. 1 in = 2.54 cm) — not rounded approximations.
No submit button needed — results update instantly as you edit the value or change units.
Celsius, Fahrenheit and Kelvin use proper non-linear formulas, not simple multiplication.
Instantly flip the "from" and "to" units without retyping anything.
All conversion math runs locally in your browser. Nothing is ever uploaded.
Length, weight, temperature, volume, and area — all in one tool.
Converting between metric and imperial units is one of the most common everyday calculations — whether you're following a recipe, checking a shipping weight, or converting a temperature forecast. UtilityX's Unit Converter handles five major categories with internationally standardized, exact conversion factors so your results are always trustworthy.
Length, weight, volume and area all convert with a simple multiplication factor. Temperature does not — 0°C is not "zero times" anything in Fahrenheit or Kelvin. Instead, each scale has its own zero point and step size, so we convert your value to Celsius first (as a common reference point) and then apply the correct formula to reach your target scale.
Our Volume category uses US customary definitions for gallons, quarts, pints, cups, and fluid ounces (as opposed to UK Imperial units, which differ slightly). Our Weight category includes both metric units (grams, kilograms, tonnes) and avoirdupois units (ounces, pounds) as commonly used in the United States.
This tool supports Length (mm, cm, m, km, in, ft, yd, mi), Weight/Mass (mg, g, kg, tonne, oz, lb), Temperature (Celsius, Fahrenheit, Kelvin), Volume (mL, L, US gallon, quart, pint, cup, fluid ounce), and Area (sq m, sq km, sq ft, acre, hectare).
We use internationally defined exact conversion factors (e.g. 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly) rather than rounded approximations, so results are as precise as JavaScript's floating-point math allows.
Unlike length or weight, temperature scales aren't simple multiples of each other. We convert your input to Celsius as an intermediate step, then from Celsius to the target scale, using the standard formulas C→F = C×9/5+32 and C→K = C+273.15.
Yes. Click the swap button between the two unit fields to instantly flip the "from" and "to" units, carrying over the last computed value.
The input field is highlighted and a clear error message appears if you type something that isn't a valid number. The tool never crashes on bad input — it simply asks you to correct it.