British gas ovens use a numbered scale running from one through nine, with mark 1 sitting at 275 Fahrenheit (140 Celsius) and each step up adding roughly 25 Fahrenheit until mark 9 hits 475 Fahrenheit (240 Celsius). Older British recipes still rely on the system, while modern editions usually print all three notations side by side.

What temperature for baking?

Cookies and cakes typically sit at 350 Fahrenheit (175 Celsius), standard bread runs hotter at 400 to 450 Fahrenheit (200 to 230 Celsius), pizza pushes higher at 450 to 500 Fahrenheit (230 to 260 Celsius), and roasting lands around 400 to 425 Fahrenheit. Each item has a sweet spot, and the recipe usually specifies what works best.

Should I adjust for convection oven?

Yes. Convection moves hot air across the food, so it cooks faster and more evenly. Drop the temperature by 25 Fahrenheit (about 15 Celsius) from the standard recipe call, or keep the temperature and shorten cooking time by roughly twenty-five percent. Many modern recipes spell out both options to spare you the math.

Are old recipe descriptions standardized?

Only loosely. The conventional ranges run from slow at 250 to 325 Fahrenheit, through moderate at 325 to 375, hot at 375 to 425, and very hot at 425 and above. Different cookbooks shade these slightly differently, so the converter offers descriptive translations that cover the common usage.

Why is my baking inconsistent at 'right' temperature?

Many ovens drift well off their dial setting, with variances of up to 25 Fahrenheit being common even on relatively new units. An inexpensive oven thermometer reveals what is actually happening inside, after which you can offset the dial to hit your real target temperature.

Convection vs convection bake?

Convection turns on the fan to circulate air. Convection bake combines the bottom heating element with the fan, while convection roast pairs the top element with the fan. Each mode tunes the heat distribution for a different style of cooking, and most home convection ovens expose all three options on the control panel.

Is the data sent anywhere?

No. Temperature conversion is pure JavaScript arithmetic running in your browser, with nothing sent to any server.

Oven Temperature Converter

Convert oven temperatures between Fahrenheit, Celsius, and Gas Mark instantly. Free cooking temperature converter with common preset temperatures.

Unit Converters Calculators

Instant results

Input Unit

Temperature (°F)

Common Presets

Fahrenheit

350°F

Celsius

177°C

Gas Mark

Common Cooking Temperatures

Description	°F	°C	Gas	Common Uses
Low / Slow Roast	250°F	121°C	1/2	Braising, slow-cooked meats
Moderate Low	300°F	149°C	2	Casseroles, custards
Moderate	325°F	163°C	3	Cakes, meatloaf
Standard Baking	350°F	177°C	4	Cookies, cakes, breads
Moderately Hot	375°F	191°C	5	Pies, chicken pieces
Hot	400°F	204°C	6	Roasted vegetables, pastries
Very Hot	425°F	218°C	7	Pizza, crusty bread
High	450°F	232°C	8	Searing, thin-crust pizza
Broil / Max	500°F	260°C	10+	Broiling, charring

How to Use Oven Temperature Converter

Enter the temperature

Type a value and pick whichever unit you have, whether Fahrenheit, Celsius, or a gas-mark number. The converter recognizes all three and treats them as interchangeable inputs.

View the conversions

The same temperature appears simultaneously in Fahrenheit, Celsius, and gas-mark form. You can grab whichever notation matches the recipe in front of you without doing any math.

Apply the convection adjustment if needed

When you are baking in a convection oven, the tool can suggest a reduced setting, typically 25 Fahrenheit below the conventional figure. Skip this step if your oven runs without a fan.

Use it in your cooking

Dial the converted temperature into your oven and let it preheat fully before the food goes in. For tight tolerances on things like macarons or sourdough, an inexpensive oven thermometer confirms the actual chamber temperature matches what the dial claims.

When to Use Oven Temperature Converter

International recipe conversion

American cookbooks default to Fahrenheit while most of the world cooks in Celsius. The converter bridges the two so a French dessert recipe lands cleanly in a Texas kitchen, or a Texas brisket recipe makes sense to a chef in Lyon.

Gas mark conversion

British recipes occasionally still call for gas mark 4 or gas mark 7 without an equivalent temperature. The converter translates the gas-mark scale into Fahrenheit or Celsius so you can dial in the right number on a modern oven.

Convection adjustments

Fan-forced ovens cook faster and more evenly, which means standard recipe temperatures run too hot. The converter offers a typical adjustment of 25 degrees Fahrenheit lower so home cooks with convection ovens land closer to the intended result.

Educational and historical

Vintage recipes describe ovens as moderate, hot, or slow rather than naming a temperature. The converter translates those descriptors into specific numbers so historical cookbooks and grandmother's recipe cards become usable again.

Oven Temperature Converter Examples

Fahrenheit to Celsius

Input

350 degrees Fahrenheit

Output

175 degrees Celsius (the precise figure rounds from 176.67)

This is the most common baking temperature in American recipes, and the rounded Celsius equivalent is what you will see in European cookbooks. The formula subtracts 32 then multiplies by five-ninths.

Gas mark conversion

Input

Gas mark 4

Output

180 degrees Celsius or 350 degrees Fahrenheit

Gas marks one through nine each correspond to a fixed temperature roughly 25 degrees Fahrenheit apart. Mark 4 sits squarely at the standard baking temperature, which is why so many British biscuit recipes call for it.

Convection adjustment

Input

A 350-degree Fahrenheit recipe being baked in a convection oven

Output

Drop the temperature to 325 Fahrenheit (165 Celsius), or keep the temperature and shorten the cooking time by about 25 percent

Convection moves hot air across the food, which speeds up cooking. Either lowering the temperature or reducing the time produces results closer to the original recipe's intent.

Tips & Best Practices for Oven Temperature Converter

1.Burn a few key conversions into memory. 350 Fahrenheit equals 175 Celsius, 400 equals 200, and 425 equals 220, which covers most everyday baking.
2.The conversion formula is (Fahrenheit minus 32) times five-ninths. Fahrenheit always reads as a higher number than Celsius for any oven temperature, since the scales meet at minus 40.
3.Gas marks span one through nine in roughly 25-degree Fahrenheit increments. Mark 1 sits at 275 Fahrenheit and mark 9 reaches 475, which lets you eyeball the others.
4.Treat convection as faster than conventional, not equivalent. Drop 25 degrees Fahrenheit or shorten the time, and never use a conventional recipe temperature unchanged in a convection oven.
5.Old recipe descriptors map roughly: slow is 250 to 325, moderate is 325 to 375, hot is 375 to 425, and very hot is 425 and up.
6.Many ovens drift off their dial setting by as much as 25 degrees Fahrenheit. An inexpensive oven thermometer reveals the true temperature, which is essential for precise baking like macarons or sourdough.

Frequently Asked Questions

The formula is (Fahrenheit minus 32) times five-ninths. A 350-degree Fahrenheit reading subtracts 32 to get 318, then multiplies by five-ninths to land near 176.67 degrees Celsius, which most cookbooks round to 175. The converter handles the math automatically once you punch in a value.

Oven Temperature Converter

Common Cooking Temperatures

How to Use Oven Temperature Converter

Enter the temperature

View the conversions

Apply the convection adjustment if needed

Use it in your cooking

When to Use Oven Temperature Converter

International recipe conversion

Gas mark conversion

Convection adjustments

Educational and historical

Oven Temperature Converter Examples

Fahrenheit to Celsius

Gas mark conversion

Convection adjustment

Tips & Best Practices for Oven Temperature Converter

Frequently Asked Questions

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