200°C is 392°F, Gas Mark 6, and 180°C fan/convection. Classified as a Hot Oven — this is the standard temperature for bread loaves, roast beef, jacket potatoes, whole roast chicken, and ciabatta. The metric equivalent of the US standard 400°F (204°C — just 4°C difference, completely interchangeable). 180°C fan is the single most-used fan-oven setting in everyday cooking.
CELSIUS
200°C
conventional
FAHRENHEIT
392°F
≈ 400°F exactly
GAS MARK
Gas 6
roasting gas mark
FAN / CONVECT
180°C
most-used fan temp
✅ 200°C = effectively 400°F (technically 392°F — just 4°C difference). If a US recipe says 400°F, set your oven to 200°C. No time adjustment needed.
💡 Fan/convection oven: set to 180°C — the most-used fan setting in everyday cooking. Fan-assisted: 190°C. Cook 15–25% faster than conventional.
200°C is where baking crosses into serious roasting territory. The Maillard reaction is fully active, producing deep golden colour and complex flavour rapidly. Bread needs 200°C for oven spring and crust formation. Roasts need it for browning the exterior before the interior over-cooks. Jacket potatoes need it for the crispy skin that lower temperatures cannot achieve.
RECIPE TIMING GUIDE AT 200°C
White bread loaf (900g)
30–35 min
Golden crust, hollow when tapped. Add steam for first 10 min for best crust.
Roast beef (topside, medium)
20 min/kg + 20
Internal 60°C medium-rare, 70°C medium. Rest 20 min tented in foil.
Jacket potatoes
60–75 min
Crispy skin, fluffy inside. Rub with oil and salt. No foil.
Ciabatta / open-crumb loaf
22–28 min
Golden crust, hollow when tapped. High hydration — scrape, do not knead.
Whole roast chicken (1.5kg)
85–95 min
Internal 75°C in thigh. Rest 15 min. Crisp, golden skin.
Garlic bread (baguette)
12–15 min
Foil-wrapped for 8 min, then open for last 5 min — golden crispy edges.
Roasted cauliflower (whole)
45–55 min
Deeply caramelised. Coat well in oil and season. Check at 40 min.
Beef Wellington (individual)
25–30 min
Pastry deep golden, beef internal 52–55°C for medium-rare.
Pork loin (no crackling)
25 min/kg + 25
Internal 70°C. For crackling: blast at 220°C for 20 min first.
Butternut squash (halved)
40–50 min
Cut-side down, caramelised and tender. Brush with butter or oil.
Always use a meat thermometer for proteins. Times are approximate — oven calibration varies.
200°C
Conventional (fan off)
Standard setting. The workhorse hot-oven temperature — bread, roast beef, chicken, jacket potatoes. Most roasting recipes mean this.
180°C
Fan / Convection
Reduce by 20°C. 180°C fan = the most-used fan setting for roasting. Cooks 15–25% faster, more even browning on all sides.
190°C
Fan-assisted (partial fan)
Reduce by 10°C. Good all-round roasting setting — between the two. Very common in modern European built-in ovens.
Gas 6
Gas Mark
Upper end of Gas Mark 6 (195–200°C). Gas 6 is the most-used roasting mark in British cooking — virtually all roasting recipes that say Gas 6 mean 200°C.
Roasting oven (lower-middle)
AGA / Rayburn
Lower-middle shelf of the roasting oven approximates 200°C. Top shelf is hotter (~230°C), bottom shelf cooler (~180°C).
DONENESS GUIDE — 1.5KG TOPSIDE AT 200°C
⚠ Remove beef 5°C below target — internal temp rises 3–5°C during resting. Always rest 15–20 min tented in foil.
Oven runs hot
Fix: Set dial to 183–188°C
Oven runs cool
Fix: Set dial to 213–218°C
Oven accurate
Fix: Use 200°C as written
Best fix: An oven thermometer (£5–10 / $8–15). Preheat 20 minutes, read the true temperature, note the offset, apply every time. For roasting especially, oven accuracy affects meat safety — use a probe thermometer for all proteins.
| °C | °F | Gas Mark | Fan °C | Oven type | Best for |
|---|---|---|---|---|---|
| 180°C | 356°F | Gas 4 | 160°C | Moderate | Cakes, biscuits, brownies |
| 190°C | 374°F | Gas 5 | 170°C | Mod. Hot | Puff pastry, quiche, roast potatoes |
| 195°C | 383°F | Gas 6 | 175°C | Mod. Hot | Roast lamb, crusty rolls, golden pastry |
| 200°C | 392°F | Gas 6 | 180°C | Hot | Bread, roast beef, jacket potatoes, chicken |
| 210°C | 410°F | Gas 6–7 | 190°C | Very Hot | Pizza, crusty artisan bread |
| 220°C | 428°F | Gas 7 | 200°C | Very Hot | Yorkshire pudding, pork crackling |
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200°C = 392°F = Gas Mark 6 = 180°C fan · Hot Oven · US 400°F equivalent · Bread, roast beef, jacket potatoes, chicken · Preheat 15+ minutes