Oven Temperatures

Convert oven temperatures between Celsius, Fahrenheit, and gas mark with heat description. Free, instant, no signup.

Formula: °F = °C × 9/5 + 32

How to use the Oven Temperatures

  1. Enter your values. Fill in the fields with your numbers.
  2. Calculate. Press Calculate to run the oven temperatures.
  3. Use the result. Copy the result or try a related tool next.

Why use our Oven Temperatures

Instant results. Enter your figures and the oven temperatures returns an answer in seconds.
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Accurate. Uses standard formulas so you can rely on the numbers.

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About the Oven Temperatures

The Oven Temperatures converter translates a single cooking temperature across the four systems home cooks actually meet on labels and in recipes: degrees Celsius, degrees Fahrenheit, the British gas mark scale, and fan (convection) oven settings. Recipes rarely agree on which one they use. American sites quote Fahrenheit, most of Europe quotes Celsius, older UK cookbooks and gas hobs use gas marks, and modern fan ovens need their own setting. This tool lets you type the number you have and instantly read every equivalent, so you can follow any recipe without second-guessing the dial.

Reach for it whenever a recipe and your oven speak different languages. A US dessert calls for 350F but your dial only shows Celsius; a vintage British recipe says gas mark 6 and you have a digital fan oven; or you bought a recipe online that assumes a conventional oven you do not own. Bakers especially need precision, because a 20 to 25 degree miss can turn a sponge dense or burn a cookie base. Catering, meal-prep, and anyone splitting their time between metric and imperial kitchens use it to avoid converting in their head while their hands are full.

The conversions follow fixed, published relationships rather than guesses. Celsius to Fahrenheit is C multiplied by 9, divided by 5, then plus 32; the reverse subtracts 32, multiplies by 5, then divides by 9. Gas mark 1 equals 275F (about 140C), and each whole gas mark step adds 25F (roughly 14C), so gas mark 4 is 350F and gas mark 6 is 400F. Fan ovens cook faster because circulating air transfers heat more evenly, so the standard rule is to set a fan oven about 20C lower than a conventional one, meaning 180C conventional becomes 160C fan.

Because charted oven temperatures are traditionally rounded to convenient dial numbers, the figures shown are practical kitchen values, not laboratory-exact decimals; 350F is usually charted as 180C even though the strict math gives roughly 177C. The 20C fan reduction is a widely accepted default, but ovens vary, so treat it as a strong starting point and trust your eyes near the end of a bake. Everything runs entirely in your browser, so the temperatures you enter are never uploaded, logged, or shared with anyone.

Frequently asked questions

What is 350F in Celsius and gas mark?

350F is most commonly charted as 180C and gas mark 4, the standard moderate baking temperature for cakes, cookies, and roasts. The strict arithmetic gives about 177C, but recipes round it to 180C for the dial.

How do I convert a conventional oven temperature to a fan oven?

Reduce the temperature by about 20C (roughly 35 to 40F) when using a fan or convection oven, because circulating air cooks food faster and more evenly. So 200C conventional becomes 180C fan, and 180C becomes 160C fan.

What is the gas mark formula?

Gas mark 1 is 275F (about 140C), and every whole gas mark adds 25F (about 14C). In Celsius the relationship is approximately C = (gas mark x 14) + 121, so gas mark 5 is around 190C.

What are gas marks below 1, like a quarter or a half?

Gas mark 1/4 is about 225F (110C) and gas mark 1/2 is about 250F (120C). These low settings are used for very slow cooking, slow roasting, drying, and dehydrating.

Why does my charted conversion not match the exact math?

Oven charts round to the nearest sensible dial number so you can actually set the temperature. For example 425F is exactly about 218C but is charted as 220C, and 350F is shown as 180C rather than 177C.

From our blog

Centimeters to Feet: The Quick Method, the Inch Trap, and a Cheat Sheet

By the Super Simple Digital Tools Team · Updated June 2026

Most centimeter-to-feet conversions exist for one reason: someone wrote a measurement in metric and someone else needs it in imperial. Heights on medical records, product dimensions on international listings, and measurements in foreign instructions all arrive in centimeters, while feet and inches remain the everyday language for height and room sizes across the United States and United Kingdom. The good news is that the conversion is built on a single exact number, so once you know it, you never have to guess.

That number is 30.48: one foot is defined as exactly 30.48 centimeters. To get decimal feet, divide your centimeter figure by 30.48. So 200 cm divided by 30.48 is about 6.56 feet. Decimal feet are mathematically correct but awkward to picture, which is why the second step matters. Take the part after the decimal point, multiply it by 12, and you have the inches. For 200 cm, the 0.56 becomes about 6.7 inches, giving roughly 6 feet 7 inches, the kind of figure you would actually say out loud.

The single biggest error people make is confusing decimal feet with feet and inches. A height of 5 feet 11 inches is not 5.11 feet. The .11 in 5.11 feet is eleven hundredths of a foot, which is only about 1.3 inches, so 5.11 feet is about 156 cm. Genuine 5 feet 11 inches is about 180 cm, a difference of nearly two and a half centimeters. Whenever a form has a single decimal feet box, do the inch math separately, or use a converter that gives you feet and inches directly.

A few anchor values make mental estimates easy. 152.4 cm is exactly 5 feet. 160 cm is about 5 feet 3 inches, 165 cm is about 5 feet 5 inches, 170 cm is about 5 feet 7 inches, 175 cm is about 5 feet 9 inches, and 180 cm is about 5 feet 11 inches. Notice that each additional 2.5 cm adds roughly an inch. Memorizing just the 5-foot and 6-foot marks lets you sanity-check almost any height conversion in your head before trusting a screen.

If you need precision rather than a rough idea, hold on to the unrounded result. Because the conversion factor is exact, the only error in a digital tool comes from how many decimal places it displays. For documents like engineering drawings, shipping specs, or official forms, copy the full-precision value and round only at the very end. For casual use, feet and inches rounded to the nearest inch is almost always what people expect to see.

  • Divide by 30.48 for decimal feet, then multiply only the leftover decimal by 12 to get inches.
  • Never type a height like 5'11" as 5.11 in a decimal feet box; that equals about 156 cm, not 180 cm.
  • Memorize 152.4 cm = 5 feet exactly and add roughly one inch per 2.5 cm to estimate any height fast.
  • For official paperwork, keep the unrounded figure and round only at the final step to avoid stacking errors.

Read the full guide →

Tool by the Super Simple Digital Tools Team. Reviewed by our editorial team. Free to use, no signup required.

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