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Oven temperature converter
Enter a temperature in any scale; the exact conversions appear below.
REFERENCE TABLE · EVERYDAY
Oven Temperature Chart: °F, °C & Gas Mark
A US recipe says 350°F, your oven dial shows Celsius, and your British cookbook says Gas Mark 4. Convert any oven temperature exactly — then use the chart for the dial setting your oven can actually hit.
Full oven temperature chart (printable)
“Chart °C” is the rounded dial setting conventional charts use — the number your oven can actually select. “Exact °C” is the true conversion; home ovens move in coarse steps, so charts round to a nearby dial number. Print this page for the fridge.
| Fahrenheit | Chart °C (dial) | Exact °C | Gas Mark | Heat |
|---|---|---|---|---|
| 225°F | 105°C | 107.2°C | ¼ | Very slow |
| 250°F | 120°C | 121.1°C | ½ | Very slow |
| 275°F | 130°C | 135.0°C | 1 | Slow |
| 300°F | 150°C | 148.9°C | 2 | Slow |
| 325°F | 165°C | 162.8°C | 3 | Moderately slow |
| 350°F | 180°C | 176.7°C | 4 | Moderate |
| 375°F | 190°C | 190.6°C | 5 | Moderately hot |
| 400°F | 200°C | 204.4°C | 6 | Hot |
| 425°F | 220°C | 218.3°C | 7 | Hot |
| 450°F | 230°C | 232.2°C | 8 | Very hot |
| 475°F | 245°C | 246.1°C | 9 | Very hot |
| 500°F | 260°C | 260.0°C | 10 | Extremely hot |
Output · formula · meaning
| Output | Formula | What it means |
|---|---|---|
| Exact Celsius | (°F − 32) × 5÷9 | 350°F is truly 176.7°C — the physics answer. |
| Chart Celsius (dial) | nearest standard setting | 180°C — the number your oven dial actually offers. Charts round because ovens can’t hit 176.7. |
| Gas Mark | (°C − 121) ÷ 14 | Gas Mark 4 — the UK scale’s anchor for the 350°F / 180°C family. It’s a table entry, not a thermometer reading. |
| Fan / convection equivalent | −20°C or −25°F | Conventional 350°F → 160°C / 325°F fan. Apply only to recipes written for a conventional oven. |
Why charts and exact math disagree
350°F converts to exactly 176.7°C — yet nearly every chart prints 180°C, and some print 175°C. Nobody is wrong: ovens are coarse instruments, gas marks sit on published anchors (225°F is Gas ¼, each step up the scale), and dials come in 5s, 10s, or 25s. Charts pick the nearest usable dial number, not the exact conversion. The 3°C difference is smaller than most ovens’ own temperature swing — an oven set to 180°C routinely cycles several degrees above and below it. So: use the exact number to understand, the chart number to bake.
Who uses this
- Recipe translators: a US blog says 350°F and your dial is in Celsius — the chart row gives you 180°C in one glance.
- UK cookbook users: Gas Mark 4, 5, 6 — find the Fahrenheit or Celsius equivalent without guessing.
- Convection converters: the fan equivalents turn any conventional recipe into a fan-oven one (and warn you when not to).
- Students & teachers: the classic “why isn’t 350°F exactly 180°C” demo — cite it below.
Accuracy & limitations
The exact conversions are exact arithmetic. The chart Celsius and gas marks are conventional rounded settings, matching the widely published oven-temperature tables — different publishers round a few rows differently (e.g. 275°F as 130 vs 140°C). Fan equivalents use the standard −20°C / −25°F rule of thumb. Real ovens vary: an inexpensive oven thermometer is the only way to know what yours actually does.
Baking at altitude or working with sugar stages? The cooking converter handles volume and weight swaps, and the high-altitude candy temperature calculator adjusts sugar stages for elevation.
Cite this reference tableBright Side Kit. “Oven Temperature Chart: °F, °C & Gas Mark.” brightoolbox.com, 2026.
Bright Side Kit. "Oven Temperature Chart: °F, °C & Gas Mark." https://brightoolbox.com/oven-temperature-chart/ Accessed October 22, 2026.Frequently asked questions
What is 350°F in Celsius for baking?
Exactly 176.7°C. Conventional charts list 180°C and Gas Mark 4, because home ovens move in coarse steps — the 3°C difference is smaller than most ovens’ own temperature swing. Set 180°C (or 160°C fan) and bake.
Is 180°C the same as 350°F?
Close, not identical. 180°C is exactly 356°F; 350°F is exactly 176.7°C. They belong to the same baking family and both map to Gas Mark 4, so recipes treat them interchangeably — but they are not the same number.
What is Gas Mark 4?
The UK oven scale’s conventional setting for the 350°F / 180°C family, described as moderate heat. Gas marks are table entries anchored to Fahrenheit steps — Gas 4 doesn’t mean a thermometer reads anything specific.
How do I convert a regular recipe for a fan / convection oven?
Start from the conventional temperature, then reduce by about 20°C (UK guidance) or 25°F (US guidance). Only do this for recipes written for a conventional oven — if the recipe already says fan or convection, keep its number.
Should I reduce the temperature for every fan oven recipe?
No — reduce only when the recipe was written for a conventional oven. A recipe that already says “fan” or “convection” has the reduction baked in; subtracting again will underbake.
Why do oven charts round the Celsius values?
Because dials do. A chart prints the nearest setting your oven can select (180°C for 350°F) instead of 176.7°C, which no dial offers. The rounding is honest — it’s smaller than the oven’s own swing.
What’s the formula for Gas Mark?
Approximately: °C = 14 × Gas Mark + 121, so Gas Mark 4 ≈ 177°C. In practice, use the chart — gas marks are defined by their Fahrenheit anchors, not by the formula.