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Unit Converter

Convert between units across 12 categories, including length, weight, temperature, area and volume.

SIMILAR CALCULATOR

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Calculate percentages, percentage change and increases or decreases, with the formula and steps shown.

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Scientific Calculator

An online scientific calculator with trigonometry, logarithms, exponents and factorials.

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Fraction Calculator

Add, subtract, multiply, divide and simplify fractions, with mixed-number and decimal output.

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WHAT IS UNIT CONVERTER?

Unit Converter covers 12 categories (excluding currency, which needs live exchange rates and is a planned future tool), with category tabs, unit search, a swap button, and common-conversion shortcuts — all computed instantly in your browser.

Features

  1. Temperature uses correct affine formulas (not a simple multiplier) — Celsius, Fahrenheit, and Kelvin all convert precisely.
  2. Data storage clearly distinguishes decimal units (KB/MB/GB/TB, base-1000) from binary units (KiB/MiB/GiB/TiB, base-1024) — never merged.
  3. Volume clearly distinguishes "Gallon (US)" from "Gallon (Imperial/UK)" as separate units.

How to use?

  1. Choose a category, then the "from" and "to" units.
  2. Enter a value — the result updates live. Click the swap button to reverse the units.
  3. Click "Copy", or use a common-conversion shortcut or the Reset button.

Frequently asked questions

Why can't temperature just be multiplied by a factor?

Because Celsius, Fahrenheit, and Kelvin aren't simple proportional relationships (0°C isn't 0°F) — they need a proper affine formula (an offset plus a scale). This tool's temperature conversion is built that way.

Are KB and KiB the same unit?

No. KB/MB/GB/TB are decimal units (base-1000), while KiB/MiB/GiB/TiB are binary units (base-1024). This tool lists them as entirely distinct units and never treats them as equivalent.

Is "gallon" US or Imperial?

This tool lists "Gallon (US)" and "Gallon (Imperial/UK)" as two separate, clearly labeled units — pick the one you need, since their volumes differ.

Result

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Common conversions