Unit Converter
Convert between common units. Pick a category, choose your units, and enter a value to convert length, weight, or temperature instantly.
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Check it outMetric and imperial, made easy
This converter handles the everyday categories: length (millimeters through miles), weight (milligrams through metric tons), and temperature (Celsius, Fahrenheit, Kelvin). Length and weight convert through a base unit, while temperature uses proper formulas rather than simple ratios — so 0°C correctly becomes 32°F, not zero.
How it’s calculated
Length and weight convert through a base unit; temperature uses formulas (e.g., °F = °C × 9/5 + 32).
Results update as you type and are estimates, not professional advice — verify important decisions with a qualified professional.
Worked example
1 meter is 3.2808 feet; 0 degrees Celsius is 32 degrees Fahrenheit.
Common mistakes
- Converting temperature with a simple ratio instead of the formula.
- Mixing up similar units (fluid vs dry, US vs metric).
Where it is used
- Quick length, weight, or temperature conversions.
- Converting a recipe or spec between systems.
Frequently asked questions
Why is temperature handled differently?
Temperature scales have different zero points, so they need formulas (like °F = °C × 9/5 + 32) rather than a single multiplier.
How precise are the results?
Conversions use standard factors and are shown to four decimals — plenty for everyday use.
Can it convert area or volume?
This tool covers length, weight, and temperature. Use the square footage calculator for area.
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