Unit Converter
Convert between all units: length, weight, temperature, data, speed, time, volume, and more.
How to Use Unit Converter
- Select the conversion category from the tabs at the top: Length, Weight, Temperature, Data, Speed, Time, Volume, Area, or Tip Calculator.
- Choose the 'From' and 'To' units using the dropdown menus, then enter the value you want to convert.
- The result appears instantly. Use the swap button to reverse the conversion direction, or copy the result to your clipboard.
About Unit Converter
The Unit Converter is a comprehensive, all-in-one tool that handles conversions across 9 different categories with over 80 unit types. Convert between metric and imperial measurements for length (millimeters to miles), weight (grams to pounds), temperature (Celsius, Fahrenheit, Kelvin), digital data (bytes to terabytes, bits to megabits), speed (km/h to mph to knots), time (milliseconds to years), volume (milliliters to gallons, teaspoons to liters), and area (square meters to acres). The tool also includes a full-featured Tip Calculator with bill splitting, percentage presets, and per-person calculations. Every conversion uses precise mathematical formulas with smart number formatting that switches between decimal and scientific notation based on the magnitude of the result. All calculations happen instantly in your browser — no server, no delays, no rounding errors.
Frequently Asked Questions
How accurate are the conversions?
Our converter uses the official SI conversion factors with full floating-point precision (up to 12 significant digits). Results are formatted using smart precision to avoid unnecessary trailing zeros while maintaining accuracy.
Does the temperature converter handle negative values?
Yes! Temperature conversion correctly handles negative values for all three scales (Celsius, Fahrenheit, Kelvin). For example, -40°C correctly converts to -40°F — the point where both scales intersect.
What data units are supported?
We support both binary (1 KB = 1024 bytes) and bit-based units: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte, Petabyte, Bit, Kilobit, and Megabit. This covers all common use cases from file sizes to network speeds.
How does the tip calculator work?
Enter your bill amount, select a tip percentage (or use presets for 10%, 15%, 18%, 20%, 25%), and optionally split between multiple people. The calculator shows the tip amount, total, per-person cost, and per-person tip.
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