Temperature Converter
Temperature conversion workspace
Enter a decimal, fraction or quick calculation — for example 12.5, 3/8 or (12*4)+6.5.
Batch conversionconvert up to 100 values at once
No values yet.
Compare all temperature units
One input, every supported equivalent. Select any row as the main target.
| Unit | Equivalent | Target action |
|---|---|---|
| Celsius °C | 0 | SourceSource |
| Fahrenheit °F | 32 | TargetSelected |
| Kelvin K | 273.15 | |
| Rankine °R | 491.67 |
Temperature scales describe how hot or cold something is.
Sourced factorsFormula
C → K: C + 273.15; F → K: (F − 32) × 5/9 + 273.15; R → K: R × 5/9
Calculations use the central unit catalog and preserve precision until the result is formatted.
Common conversions
| Input | From | To | Result |
|---|---|---|---|
| 0 | Celsius | Fahrenheit | 32 |
Common temperature conversions
Curated references with worked examples, formulas and the full interactive converter.
Frequently asked questions
What is absolute zero on each supported scale?
Absolute zero is 0 K, 0 °R, −273.15 °C or −459.67 °F. The converter rejects any input below the corresponding limit.
Are the results rounded?
The calculation retains full JavaScript number precision; the precision control only formats the displayed result.
Accuracy & transparency
Sources & methodology
Calculations keep full numeric precision until display formatting. These references describe the definitions, variants or factors used; links do not imply affiliation.
SI definitions and published coefficients for selected non-SI units.
Reference factors and named variants for commonly used units, including US liquid cooking measures and British stone.
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