Unit Converters
Free online unit converters for the most common measurement types. Each converter shows results for all units simultaneously, so you can see the full picture at once.
Available Converters
About These Converters
Each converter on this site uses a base-unit method: every measurement is first converted to a common base (meters for length, grams for weight, milliliters for volume, etc.), then converted to the target unit. This guarantees accuracy across all unit pairs without maintaining a conversion table for every possible combination.
For temperature, which uses non-linear (offset) formulas, all conversions route through Celsius as the intermediate unit. For data storage, the binary standard (1 KB = 1,024 bytes) is used, consistent with how operating systems report file and disk sizes.
Results update instantly as you type. The full conversion table shows your input expressed in every available unit simultaneously — useful when you need to compare across multiple units at once.
Other Calculators
- Percentage Calculator — find X% of Y, percentage change, reverse percent
- BMI Calculator — body mass index, with metric and imperial inputs
- Tip Calculator — bill split per person with custom tip percentage
- Fraction Calculator — add, subtract, multiply, divide fractions with steps
- Age Calculator — years, months, days between two dates
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- Scientific Calculator — Advanced math with unit-aware calculations
- BMI Calculator — Uses weight and height in metric or imperial
- Area Calculator — Calculate area of shapes for unit conversion context
- Currency Converter — Convert between world currencies