Unit converter

Temperature Interval converter

Convert temperature differences among kelvin, Celsius, Fahrenheit, Rankine, and Reaumur intervals.

Enter a value and choose units. Results update instantly.

1 K = 1 °C

All Temperature Interval units

From 1 K
UnitValue
Kelvin K 1
Celsius °C 1
Fahrenheit °F 1.7999999999
Rankine °R 1.7999999999
Reaumur °Ré 0.8
Triple point of water °T 3,660.8581051398
Recent conversions
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Common tasks

Kelvin to CelsiusK to °C Celsius to Kelvin°C to K Kelvin to FahrenheitK to °F Fahrenheit to Kelvin°F to K Kelvin to RankineK to °R Rankine to Kelvin°R to K

Reference

How temperature interval conversion works

A temperature interval is a difference between temperatures, so it uses scale ratios without absolute-zero offsets. Values are normalized to Kelvin before conversion to the requested output unit.

Values are converted to kelvin first, then from that reference into the requested unit. Keeping a single documented reference reduces inconsistent pair-by-pair constants.

Accuracy note: SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.

Unit reference

UnitSymbol1 unit in K
KelvinK1
Celsius°C1
Fahrenheit°F0.5555555556
Rankine°R0.5555555556
Reaumur°Ré1.25
Triple point of water°T0.00027316

Long-tail directory

Every indexed conversion

Choose a source unit to see all available destinations.

From Kelvin (K)
Kelvin to CelsiusKelvin to FahrenheitKelvin to RankineKelvin to Reaumur
From Celsius (°C)
Celsius to KelvinCelsius to FahrenheitCelsius to RankineCelsius to Reaumur
From Fahrenheit (°F)
Fahrenheit to KelvinFahrenheit to CelsiusFahrenheit to RankineFahrenheit to Reaumur
From Rankine (°R)
Rankine to KelvinRankine to CelsiusRankine to FahrenheitRankine to Reaumur
From Reaumur (°Ré)
Reaumur to KelvinReaumur to CelsiusReaumur to FahrenheitReaumur to Rankine

Primary source

Definitions and standards

The SI framework is checked against NIST Guide for the Use of the International System of Units. Conventional factors are retained from the extended ConvertWin inventory and carry the accuracy note shown above.

See Methods & sources for rounding rules, exact-value handling, and review policy.

Questions

Temperature Interval FAQ

What is the reference unit for temperature interval conversions?

ConvertWin uses kelvin (K) as the internal reference for this category, then converts to the selected output unit.

How accurate is this temperature interval converter?

SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.