TEMPERATURE SCALE WORKSPACE

Temperature Converter

Convert Celsius, Fahrenheit, Kelvin, and Rankine with offsets handled correctly and absolute zero validated.

Reviewed reference factorsValues stay in this browser tabValues below absolute zero are rejected; up to 12 display decimals.

Conversion input

Convert between temperature scales

Enter a temperature and choose both scales. Negative values are accepted where physically valid, and the Kelvin path is shown.

Find a unit4 / 4

Filter by unit name, symbol, or code. Your current selections remain available.

Known value0 / 80

Enter the temperature number without a degree symbol. Negative Celsius and Fahrenheit values are supported when they are not below absolute zero.

Convert from

Choose the unit attached to the value you entered.

Convert to

Choose the unit required for your report, estimate, or comparison.

Displayed precision

Choose the maximum decimal places shown. This does not increase source accuracy.

Conversion runs locally after the active reference catalogue loads.

Conversion result

Your checked conversion appears here

Enter a valid temperature to compare Celsius, Fahrenheit, Kelvin, and Rankine on one screen.

What this tool delivers

Scale offsets handled, not approximated

Temperature conversion is affine: the workspace applies both multiplier and offset instead of treating scales as simple ratios.

What it converts

Converts a physically valid temperature among Celsius, Fahrenheit, Kelvin, and Rankine through the Kelvin base scale.

What you provide

One temperature value and its scale. The value must be at or above absolute zero for that scale.

What you receive

The selected temperature, all scale equivalents, the offset equation, and a CSV with the chosen precision.

Calculation method

How scale multipliers and offsets work

The source multiplier and offset first produce kelvin. The destination offset is removed and the result is divided by its multiplier. This is why a temperature scale cannot be converted with one ratio alone.

Review the BIPM SI Brochure

Quick answers