Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
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1 °F = -17.22222222 °C
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 1 | -17.22222222 |
| 2 | -16.66666667 |
| 5 | -15 |
| 10 | -12.22222222 |
| 15 | -9.444444444 |
| 20 | -6.666666667 |
| 25 | -3.888888889 |
| 50 | 10 |
| 75 | 23.88888889 |
| 100 | 37.77777778 |
| 150 | 65.55555556 |
| 200 | 93.33333333 |
| 250 | 121.1111111 |
| 500 | 260 |
| 1,000 | 537.7777778 |
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Temperature Conversion Formulas
| Conversion | Formula |
|---|---|
| Fahrenheit to Celsius | (°F − 32) × 5/9 |
| Celsius to Fahrenheit | (°C × 9/5) + 32 |
| Celsius to Kelvin | °C + 273.15 |
| Kelvin to Celsius | K − 273.15 |
Temperature Quick Reference
| Description | Celsius | Fahrenheit |
|---|---|---|
| Freezing point of water | 0°C | 32°F |
| Refrigerator | 4°C | 39°F |
| Room temperature | ~21°C | ~70°F |
| Normal body temperature | 37°C | 98.6°F |
| Fever threshold | 38°C | 100.4°F |
| Boiling point of water | 100°C | 212°F |
| Oven (moderate) | 180°C | 356°F |
| The crossover point | −40°C | −40°F |
A fun fact: −40° is the unique crossover point where Fahrenheit and Celsius are exactly the same value. Below that, Fahrenheit readings are actually lower than Celsius.
Need to convert Fahrenheit to Celsius specifically? Try our Fahrenheit to Celsius converter.
When to use this
Temperature is one of the most frequently converted units because the US, Belize, and a handful of other countries use Fahrenheit while the rest of the world uses Celsius. Every time you check weather abroad, follow an international recipe, or read a scientific paper, you may need to convert. This tool handles Celsius, Fahrenheit, and Kelvin — covering everyday, cooking, and scientific needs in one place.
The most searched temperature conversion is Fahrenheit to Celsius (and vice versa). Kelvin is primarily used in science and engineering — it starts at absolute zero (-273.15°C) and uses the same degree size as Celsius, making conversion between the two a simple addition or subtraction of 273.15. If you only need F-to-C, we have a dedicated converter for that too.
Good to know
Temperature conversions are not simple multiplications. Unlike length or weight (where you just multiply by a factor), temperature involves both multiplication and an offset. C = (F - 32) x 5/9. K = C + 273.15. This makes mental math harder, which is why a converter is more useful for temperature than almost any other unit.
Celsius and Fahrenheit agree at -40°. At exactly -40 degrees, both scales read the same number. Above -40, Fahrenheit numbers are always higher. At 0°C (32°F) water freezes; at 100°C (212°F) it boils. These are the anchor points for the Celsius scale.
Kelvin has no negative numbers. Zero kelvin is absolute zero — the lowest possible temperature where all molecular motion stops. It is -273.15°C or -459.67°F. Nothing in the universe has ever been cooled to exactly 0 K, though laboratories have gotten within billionths of a degree.
Quick Reference
| °F | °C | K | Context |
|---|---|---|---|
| -459.67 | -273.15 | 0 | Absolute zero |
| -40 | -40 | 233.15 | Scales intersect |
| 0 | -17.78 | 255.37 | Cold winter day |
| 32 | 0 | 273.15 | Water freezes |
| 68 | 20 | 293.15 | Room temperature |
| 98.6 | 37 | 310.15 | Body temperature |
| 212 | 100 | 373.15 | Water boils |
| 350 | 176.67 | 449.82 | Baking |