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Science
Temperature Conversion Table
Values shown for 1 Celsius
About Temperature Conversions
Temperature breaks the pattern every other unit follows: the scales are non-linear and start from different zero points. You cannot multiply by one factor. Turning 0°C into Fahrenheit takes a multiply and an add (0°C × 9/5 + 32 = 32°F). Celsius and Fahrenheit cross at exactly -40°, which makes a quick sanity check easy. Scientific work leans on Kelvin, which starts at absolute zero (-273.15°C) and underpins thermodynamics, gas laws, and astrophysics. The formulas below cover seven scales, down to the historical Delisle, Newton, and Réaumur scales still cited in older literature.
| Unit Name | Symbol | Value | Formula |
|---|---|---|---|
| Celsius | °C | 1 | base unit |
| Delisle | °De | 148.5 | °C = 100 − °De × 2/3 |
| Fahrenheit | °F | 33.8 | °C = (°F − 32) × 5/9 |
| Kelvin | K | 274.15 | °C = K − 273.15 |
| Newton | °N | 0.33 | °C = °N × 100/33 |
| Rankine | °R | 493.47 | °C = (°R − 491.67) × 5/9 |
| Réaumur | °Ré | 0.8 | °C = °Ré / 0.8 |