Recipe Scaler
Enter your ingredients and scale by servings or a custom multiplier. Halve a recipe, double it, or anything in between.
Scaled Recipe ×1.00
- 2cupplain flour
- 1tspbaking powder
- ½tspsalt
- 115gunsalted butter
- 200gcaster sugar
- 2large eggs
- 120mlwhole milk
- 1tspvanilla extract
Pan Size Converter
Converting a 9×13 to an 8×8? Find out exactly how to scale your recipe and adjust bake time.
Units
Recipe scaling
scale ingredients down × 0.55
Area ratio: 64 ÷ 117 sq in
Bake time
Decrease bake time by 10–20%
Depth & temp
Batter will be deeper - reduce oven temp by 10-15 °C (25 °F) and check early.
Popular conversions
Oven Temperature Converter
Convert between Gas Mark, Celsius and Fahrenheit. Find the nearest named temperature level too.
Gas Mark
4
Celsius
180 °C
Fahrenheit
350 °F
Common oven temperatures
Full Gas Mark Reference Table
| Gas Mark | °C | °F |
|---|---|---|
| 0.25 | 110 | 225 |
| 0.5 | 120 | 250 |
| 1 | 140 | 275 |
| 2 | 150 | 300 |
| 3 | 160 | 325 |
| 4 | 180 | 350 |
| 5 | 190 | 375 |
| 6 | 200 | 400 |
| 7 | 220 | 425 |
| 8 | 230 | 450 |
| 9 | 240 | 475 |
| 10 | 260 | 500 |
Quick Reference Tables
Handy conversion tables for every kitchen situation - bookmark this page for quick access while cooking.
| Measure | Metric | Equivalents | Other |
|---|---|---|---|
| 1 teaspoon (tsp) | 5 ml | - | 1/48 cup |
| 1 tablespoon (tbsp) | 15 ml | 3 tsp | 1/16 cup |
| 1 fl oz | 30 ml | 2 tbsp | - |
| ¼ cup | 60 ml | 4 tbsp | 2 fl oz |
| ⅓ cup | 80 ml | 5⅓ tbsp | - |
| ½ cup | 120 ml | 8 tbsp | 4 fl oz |
| ⅔ cup | 160 ml | 10⅔ tbsp | - |
| ¾ cup | 180 ml | 12 tbsp | 6 fl oz |
| 1 cup | 240 ml | 16 tbsp | 8 fl oz |
| 1 pint (US) | 473 ml | 2 cups | 16 fl oz |
| 1 quart (US) | 946 ml | 4 cups | 32 fl oz |
| 1 litre | 1000 ml | 4¼ cups | 33.8 fl oz |
Explore by Task
Use the calculators right here, or open dedicated pages with focused FAQs and conversion-specific guidance.
Pan Size & Kitchen Conversion FAQ
How do I convert a 9×13 pan to an 8×8?▾
What is Gas Mark 4 in Celsius and Fahrenheit?▾
How do I halve a recipe?▾
Can I use a round pan instead of a square one?▾
How do I convert fan oven temperatures?▾
What is the pan size conversion for a Bundt cake?▾
Why pan area matters more than volume
When substituting baking pans, what matters most is the base area of the pan, not the depth or total volume. Recipes designed for a 9×13 pan produce a batter of a certain depth. If you use a smaller pan, the batter gets deeper - and deeper batters need more time and a slightly lower temperature to cook through without over-browning on top.
As a rule of thumb: if your replacement pan has less than 80% of the original area, drop the temperature by 10–15 °C (25 °F) and add 10–20% to the baking time. If it has more area, the batter will be shallower and will cook faster - check 10 minutes early.
Gas marks: a British standard
Gas marks are a scale used in the UK and Ireland. Gas Mark 1 = 140 °C = 275 °F; each additional mark adds roughly 14 °C (25 °F). Most British baking recipes quote Gas Marks alongside °C, but American recipes rarely mention them. Use the converter above any time you see "Gas Mark" in a recipe.