The full conversion chart: every 5 °C from −40 °C to 250 °C with exact Fahrenheit values, every 10 °F back the other way, body temperatures to one decimal, and the rule for values between rows — use the formula, never a guess.

Why a chart, when the converter is instant

The converter above answers any single temperature exactly, and for a single value it is always the better tool. A chart earns its place for a different job: scanning. A cook comparing oven settings, a traveller reading a week of forecasts, a nurse checking where a fever reading sits — all of them want the neighbourhood of a value, not just the value, and a chart shows the neighbourhood at a glance. The steps also teach the pattern: every 5 °C step is exactly 9 °F, because a Celsius degree is 9/5 of a Fahrenheit degree, and watching that 9 °F march down the table makes the formula feel inevitable rather than memorised.

Read the chart with two rules. First, every Celsius-to-Fahrenheit figure in the main table is exact to the whole degree — 5 °C steps always land on whole Fahrenheit numbers, because 5 × 9/5 = 9, a whole number. Second, the reverse table is rounded to one decimal place, because most Fahrenheit values do not convert to tidy Celsius numbers: 72 °F is 22.2 °C, not 22 °C, and the table says so. Rounding is marked by the decimal itself — whole numbers in the first table are exact, one-decimal numbers in the second are rounded, and for any value between rows the exact answer is one formula away.

Celsius to Fahrenheit chart: −40 °C to 250 °C

Every 5 degrees, from the point where the two scales agree (−40) to the top of a hot oven (250 °C = 482 °F). The landmark rows are the ones people actually search: 0 °C = 32 °F where water freezes, 20 °C = 68 °F for room temperature, 37 °C = 98.6 °F for body temperature (37 °C is a 1 °C step off the 5 °C grid, so it is not a row here — see the body-temperature table below), 100 °C = 212 °F where water boils, and 180 °C = 356 °F, the most-used oven setting, whose exact figure cookbooks round to 350 °F.

Fahrenheit to Celsius chart: −40 °F to 250 °F

The reverse direction, every 10 °F, rounded to one decimal place. The anchor rows: 32 °F = 0 °C, 68 °F = 20 °C, 98.6 °F = 37 °C (98.6 °F is not a 10 °F grid row — see below), 212 °F = 100 °C, and the crossover −40 °F = −40 °C, the only temperature where both scales read the same number. If a Fahrenheit value falls between rows, convert it exactly with (°F − 32) × 5/9 rather than guessing between neighbours: the relationship is linear, so the formula is exact everywhere, and the table is a shortcut, not an approximation method.

Between rows: the exact value, not a guess

Charts invite interpolation — estimating between rows — and for temperature conversion interpolation is unnecessary, because the exact formula is two operations. For a Celsius value between rows, such as 23 °C: 23 × 9/5 = 41.4, and 41.4 + 32 = 73.4 °F. For 36.5 °C: 36.5 × 9/5 = 65.7, plus 32 = 97.7 °F. The table brackets the answer (20 °C = 68 °F and 25 °C = 77 °F surround 73.4 °F, as they must), but the formula replaces the bracket with the answer. Use the chart to find the neighbourhood and the converter above for the exact figure, and never round an intermediate step: rounding 41.4 to 41 before adding 32 gives 73 °F, which is wrong by 0.4 °F — small, but exactly the kind of drift that matters for a fever or a bake.

The same discipline applies to differences, where the commonest error lives. A temperature difference converts with the stretch alone and no shift: a day that warms by 10 °C has warmed by 18 °F, because 10 × 9/5 = 18, with no 32 anywhere. The 32 in the conversion formula is an offset between the two zeroes, and a difference has no zero to offset. If a converted difference contains a 32, the arithmetic went wrong — that single check catches the error every time, and it is worth memorising alongside the formula itself.

Body temperatures, to one decimal

Body temperature is the one place where whole degrees are not precise enough, so this table keeps one decimal. Normal body temperature, 37 °C, is 98.6 °F. A reading of 36.5 °C is 97.7 °F; 38 °C is 100.4 °F; 39 °C is 102.2 °F; 40 °C is 104 °F. These are conversions only — what any reading means for health is a question for a clinician, not for a chart, and fever thresholds vary by measurement site and by person. The chart’s job is to make sure the number itself is never the source of confusion: 38 °C and 100.4 °F are the same temperature, and any advice written in one scale translates to the other by this table.

Oven settings and weather, from the chart

Oven settings are where the chart’s rounding story matters most. Recipe books round oven settings to friendly numbers: 180 °C appears as 350 °F in many books, but the exact conversion is 356 °F, and 200 °C is 392 °F, not 400 °F. The difference rarely ruins a dish — ovens themselves vary by more than 6 °F — but it explains why two books disagree, and why the converter’s exact figure and the book’s rounded figure can both be “right” in their own terms. For baking precision, trust the exact figure and your oven’s own thermometer over either printed number.

Weather reading benefits from the opposite skill: memorising five landmark pairs instead of converting every forecast. Learn 0 °C = 32 °F, 10 °C = 50 °F, 20 °C = 68 °F, 30 °C = 86 °F, and 100 °C = 212 °F, and any forecast can be placed within a few degrees by eye: 23 °C sits between the 20 °C and 30 °C landmarks, closer to 20, so it must be in the low 70s °F — and the exact figure, 73.4 °F, confirms it. Forecasts are themselves approximations, so a forecast converted to a tenth of a degree is no more accurate than one converted to the nearest whole degree, and the chart’s whole-degree rows are the honest precision for weather.

A note on Kelvin, for completeness

Kelvin shares the Celsius step size and differs only by a shift: K = °C + 273.15, with no multiplication at all. Absolute zero is 0 K = −273.15 °C = −459.67 °F, and water freezes at 273.15 K. The chart above does not tabulate Kelvin because the conversion is a single addition — add 273.15 to any Celsius row to get its Kelvin value — but the relationship is worth stating, because it explains why scientists prefer Kelvin: it starts at the coldest possible temperature, so its zero means something physical, while the Celsius and Fahrenheit zeroes are historical accidents of freezing water and a salt-ice mixture.

Frequently asked questions

Where is the full Celsius to Fahrenheit chart?

Right here: the main table lists every 5 °C from −40 °C to 250 °C, with exact whole-degree Fahrenheit values, and the reverse table lists every 10 °F from −40 °F to 250 °F in Celsius to one decimal place. For a value between rows, use the converter above for the exact figure.

What is 180 °C in Fahrenheit, exactly?

356 °F. Many recipe books print 350 °F, which is a rounded convention, not the exact conversion: 180 × 9/5 + 32 = 356. The difference rarely matters for cooking, but the exact figure is 356 °F.

What is 37 °C in Fahrenheit?

98.6 °F. Body temperatures are tabulated to one decimal in this article: 36.5 °C is 97.7 °F, 38 °C is 100.4 °F, 39 °C is 102.2 °F, and 40 °C is 104 °F. These are conversions only, not health advice.

At what temperature are Celsius and Fahrenheit the same?

−40. Both scales read −40 at the same physical temperature, the only point where they agree. Every other temperature reads differently on the two scales, because Fahrenheit degrees are smaller and its zero sits elsewhere.

How do I convert a temperature between chart rows?

Use the formula, not a guess: °F = °C × 9/5 + 32, or °C = (°F − 32) × 5/9. For 23 °C: 23 × 9/5 = 41.4, plus 32 = 73.4 °F. Do not round intermediate steps — rounding 41.4 to 41 gives 73 °F, wrong by 0.4 °F.

How do I convert a temperature difference?

Multiply by 9/5 (or 5/9) with no 32 anywhere. A day warming by 10 °C warmed by 18 °F, because a difference has no zero to offset. If a converted difference contains a 32, the arithmetic went wrong.