Celsius to Fahrenheit Converter
Convert °C to °F instantly, with a reference table covering weather, body temperature, and cooking.
Celsius to Fahrenheit Converter
1 °C = 33.8 °F
Multiply degrees Celsius by 1.8, then add 32, to get degrees Fahrenheit.
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Degrees Celsius to degrees Fahrenheit reference table
The conversions people look up most often, rounded to 2 decimal places.
| Degree Celsius (°C) | Degree Fahrenheit (°F) |
|---|---|
| -40 °C | -40 °F |
| -20 °C | -4 °F |
| -10 °C | 14 °F |
| 0 °C | 32 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 37 °C | 98.6 °F |
| 40 °C | 104 °F |
| 100 °C | 212 °F |
| 180 °C | 356 °F |
| 200 °C | 392 °F |
The degrees Celsius people look up most
- 5 °C = 41 °F
- A refrigerator should sit at or below this; above it, food safety times shorten sharply.
- 7 °C = 44.6 °F
- A cool spring morning, and roughly the upper limit for a domestic fridge.
- 20 °C = 68 °F
- A mild room. The rough version - double and add 30 - gives 70, which is close enough for weather.
- 37 °C = 98.6 °F
- Body temperature, and the reason that oddly precise Fahrenheit figure exists at all.
- 38 °C = 100.4 °F
- The clinical fever threshold, which is a round number in Celsius and not in Fahrenheit.
- 120 °C = 248 °F
- A slow oven, used for meringues and long low roasts.
- 175 °C = 347 °F
- A moderate oven, which American recipes round up to 350 along with everything near it.
- 180 °C = 356 °F
- A common European oven setting, which American recipes write as 350.
- 190 °C = 374 °F
- A hot oven for roasting, written as 375 in American recipes.
- 200 °C = 392 °F
- A very hot oven, written as 400 in American recipes and used for bread and roast potatoes.
How the celsius to fahrenheit calculation works
Temperature is the one conversion on this list that is not a simple multiplication, because the two scales have different zero points as well as different step sizes:
°F = (°C × 9/5) + 32
The 9/5 accounts for the fact that a Fahrenheit degree is smaller — there are 180 Fahrenheit degrees between freezing and boiling water where Celsius has 100. The + 32 shifts the scale so that water freezes at 32°F rather than 0°F.
Work through 20°C, a mild spring day: 20 × 9/5 = 36, plus 32 = 68°F. Body temperature at 37°C becomes 37 × 1.8 = 66.6, plus 32 = 98.6°F — the familiar number. And a 200°C oven is 200 × 1.8 + 32 = 392°F, which is why recipes usually round it to 400°F.
Some anchors worth memorizing:
- -40 is the same in both scales. It is the single point where the two lines cross, which makes it an easy sanity check on any conversion formula.
- Double it and add 30 for a rough estimate. 20°C → 70°F against a true 68°F. The approximation drifts at extremes but is fine for weather.
- A 1°C change equals a 1.8°F change. When you are converting a difference rather than a temperature — a thermostat adjustment, say — you multiply by 1.8 and skip the +32 entirely.
To convert back, subtract 32 first and then multiply by 5/9. Order matters: doing it the other way around gives the wrong answer.
Frequently asked questions
Is a fan oven set to the same temperature as a conventional one?
No, and the adjustment is separate from the conversion. A fan or convection oven is normally set about 20°C lower than a conventional one for the same result, so a recipe’s 180°C conventional becomes 160°C fan - and 350°F conventional becomes around 325°F on a US convection setting. Convert the temperature first and apply the fan adjustment second; doing both at once is how a cake burns.
Why does a feels-like temperature not convert cleanly?
Because it is a calculated index rather than a measurement, and the calculations differ. The North American wind chill index and the apparent-temperature figures used across Europe are different formulae fed by different humidity and wind assumptions, so converting one country’s feels-like number does not give what the other country would have published. Convert the actual air temperature and treat the feels-like figure as local.
Is −40 the only point where the two scales agree?
It is the only place the two lines meet, which makes it a quick check that a formula is the right way round. There is one coincidence worth knowing alongside it: around 16°C the Fahrenheit figure is roughly the digits reversed, since 16°C is 60.8°F and 28°C is 82.4°F. It works for a handful of values and fails everywhere else, so treat it as a curiosity.
Related converters
- Fahrenheit to Celsius ConverterConvert °F to °C instantly, with a reference table covering weather, fever thresholds and oven temperatures.
- Celsius to Kelvin ConverterConvert Celsius to kelvin instantly, with a reference table covering absolute zero, everyday temperatures and lab conditions.
- Kelvin to Celsius ConverterConvert kelvin to Celsius instantly, with a reference table covering cryogenics, light colour temperature and stellar surfaces.
Further reading
- Oven Temperatures: Gas Marks, Fan Ovens and the 25-Degree ProblemAmerican recipes give °F, British ones give °C or a gas mark, and a fan oven needs 20 °C less than all of them. Here is every conversion in one place.
- Kitchen Conversion Cheat SheetEvery measurement a recipe can throw at you, in one table — cups, spoons, ounces, oven temperatures, and the three that differ by country.
- Metric vs Imperial: What Actually DiffersEvery factor you need, all exact by definition — plus the three conversions people get wrong, and why area is not what you expect.