How it works
What this calculadora actually does
Most Cooking tools bury the calculation. Oven Temperature Converter shows it. Punch in your figures, read the working, share the URL if you need a second opinion.
Professional kitchens weigh everything; domestic kitchens should too for anything leavened. Have a set of scales on the counter — then scale the recipe and the rest of this page explains what the answer means.
Common UK conversions: Gas 3 = 160 °C = 325 °F; Gas 4 = 180 °C = 350 °F; Gas 6 = 200 °C = 400 °F. Reduce fan oven by 20 °C (or one gas mark) from conventional.
Following the method end to end
Here's what happens when you plug real numbers in.
Common UK conversions: Gas 3 = 160 °C = 325 °F; Gas 4 = 180 °C = 350 °F; Gas 6 = 200 °C = 400 °F. Reduce fan oven by 20 °C (or one gas mark) from conventional.
When to use this calculadora
Oven Temperature Converter is aimed at people arriving with questions like these:
- "Gas mark to celsius"
- "Fan oven conversion"
- "Celsius to gas mark"
- "Oven temperature chart"
- "What is oven temperature converter"
- "How to calculate oven temperature converter"
When to reach for something else
Every tool has an edge where it stops being the right answer. Oven Temperature Converter is no exception:
- For legally binding tax or medical decisions — cross-check with HMRC, NHS or a qualified professional.
- For very large or very small extremes the rounding error outgrows the useful precision.
- When the underlying rate or threshold has changed since the page was last reviewed — always verify with the primary source.
- When the input you have is already a derived figure (net of something) — feeding it in as "gross" will double-subtract.
Mistakes we see over and over
Every time you scale the recipe for a new scenario, one of these creeps in — it's worth knowing them ahead of time.
- Entering a monthly figure into an annual field (or vice versa).
- Forgetting a leading zero on decimals (.5 instead of 0.5 breaks some inputs).
- Trusting a single reading when the underlying number naturally fluctuates.
- Comparing two answers that used different assumptions — always re-run both.
- Skipping the formula box. If you don’t understand the method, the answer is just a vibe.
The sources behind the numbers
Where the maths needs an external authority, we cross-check against:
- BBC Good Food
- Good Housekeeping
Works well alongside
If this question keeps coming up for you, the same cluster of tools usually comes next:
- Temperature Converter — Convert Celsius, Fahrenheit and Kelvin with the exact formulas, plus a reference table for common oven temperatures and weather milestones.
- Recipe Scaler — Scale any recipe up or down by servings, with smart unit-aware conversions so 1.33 tsp becomes "1 tsp + 1 pinch".
How we keep this accurate
Our calculadoras run on pure, unit-tested functions — the same logic lives in the browser and in the CI test suite. When tax rates, thresholds or official figures move, the update lands within 24 hours of the announcement. You can read the editorial policy and corrections policy.
Found an out-of-date number on Oven Temperature Converter or anywhere else in the Cooking toolkit? Send it to the editorial desk and we'll patch it. Or browse the full calculadora directory for the next tool you need.