What units are supported?

Length (mm, cm, m, km, in, ft, yd, mi), weight (mg, g, kg, oz, lb), and temperature (Celsius, Fahrenheit, Kelvin).

Is temperature converted correctly?

Yes, temperature uses proper conversion formulas, not simple multipliers, since Celsius, Fahrenheit, and Kelvin scales don't share a common zero point.

Can I swap the from/to units quickly?

Yes, use the swap button to instantly reverse the conversion direction.

How precise are the conversions?

Conversions use standard, internationally recognized conversion factors and display results to a practical number of decimal places.

Why does temperature conversion work differently from length and weight?

Temperature scales (Celsius, Fahrenheit, Kelvin) have different zero points, so converting requires an offset formula rather than a simple multiplication ratio like length or weight.

Can I convert between imperial and metric in both directions?

Yes, every unit works both as a source and target — select any two units and convert either way.

Are the length units based on international or US definitions?

Standard international definitions are used (e.g. exactly 2.54 cm per inch), consistent with common engineering and scientific references.

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Unit Converter

Convert between length, weight, and temperature units instantly and accurately.

Quick Answer

Unit Converter lets you: Convert between length, weight, and temperature units instantly and accurately. To start, select Length, Weight, or Temperature.

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How to use this tool

1
Choose a category
Select Length, Weight, or Temperature.
2
Pick your units
Choose the unit to convert from and the unit to convert to.
3
Enter a value
Type the number you want to convert.
4
View the result
See the converted value update instantly.

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Unit Converter

How to use this tool

Choose a category

Pick your units

Enter a value

View the result

Frequently Asked Questions

What units are supported?

Is temperature converted correctly?

Can I swap the from/to units quickly?

How precise are the conversions?

Why does temperature conversion work differently from length and weight?

Can I convert between imperial and metric in both directions?

Are the length units based on international or US definitions?

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Unit Converter

How to use this tool

Choose a category

Pick your units

Enter a value

View the result

Frequently Asked Questions

What units are supported?

Is temperature converted correctly?

Can I swap the from/to units quickly?

How precise are the conversions?

Why does temperature conversion work differently from length and weight?

Can I convert between imperial and metric in both directions?

Are the length units based on international or US definitions?

Related Tools

Percentage Calculator

BMI Calculator