Cooking Measurement Converter

Convert between ml, cups, tablespoons, pints and ounces. Includes gas mark to °C/°F chart.

Source: BBC Good Food — Weights and measures

Konstantin Iakovlev

By Konstantin Iakovlev · Founder, Calks.uk

Last updated: · Verified against HMRC and GOV.UK 2026/27 rates

Litres (L)

0.250

Teaspoons (tsp)

50.00

Tablespoons (tbsp)

16.67

Fluid Ounces (fl oz)

8.80

Cups (UK)

0.880

Cups (US)

1.06

Pints (UK)

0.440

Gills

1.76

Disclaimer

This calculator is provided for informational purposes only and should not be considered as financial or tax advice. All calculations are performed locally in your browser — no personal data is collected or sent to our servers. Rates and thresholds are sourced from HMRC and GOV.UK and are updated for the current tax year. Always verify results with HMRC or consult a qualified professional before making financial decisions.

How It Works

UK recipes use a mix of metric (grams, ml) and imperial (ounces, pints) measurements, while American recipes rely on cups and tablespoons. This converter translates between cups, tablespoons, teaspoons, millilitres, fluid ounces, grams and ounces for common cooking ingredients.

Volume-to-weight conversions depend on the ingredient. A cup of flour weighs approximately 125 g, while a cup of sugar weighs approximately 200 g and a cup of butter weighs approximately 227 g. The calculator adjusts for ingredient density to give accurate gram equivalents for cup measures.

UK vs US measurements. UK recipes: grams (weight) and millilitres (volume). US recipes: cups, tablespoons, ounces (volume for everything). 1 US cup = 237 ml. 1 UK 'cup' (rare in modern recipes) = 284 ml. 1 US tbsp = 14.79 ml ≈ 15 ml. 1 UK tbsp = 17.7 ml officially. 1 UK fluid ounce = 28.41 ml; US fl oz = 29.57 ml. Best practice: weigh dry ingredients in grams for precise baking results.

Common UK kitchen conversions. 1 tsp = 5 ml; 1 dsp (dessertspoon) = 10 ml; 1 tbsp = 15 ml. Mug average 250-300 ml. Wine glass: small 125 ml, medium 175 ml, large 250 ml. Bottle of wine: 750 ml. UK pint: 568 ml; US pint: 473 ml. Tin of tomatoes 400g. Pat of butter 25g. Tablespoon flour 8g; sugar 12g; salt 18g. Heaped vs level matters in baking; tolerated in soups.

UK oven temperatures. Gas Mark 1 = 140°C / 120°C fan; Gas 2 = 150 / 130; Gas 3 = 160 / 140; Gas 4 = 180 / 160 (most baking); Gas 5 = 190 / 170; Gas 6 = 200 / 180; Gas 7 = 220 / 200; Gas 8 = 230 / 210; Gas 9 = 240 / 220. Fan ovens run hotter — reduce conventional by 20°C. Always preheat 10-15 min; oven thermometers help (most ovens 10-20°C off). AGAs: 4-oven models with fixed temps — roasting 240°C, baking 180°C, simmering 140°C, warming 70°C.

Ingredient density. 1 US cup (237 ml) of: flour 125g; granulated sugar 200g; brown sugar packed 213g; butter 227g; rice 200g; oats 95g; cocoa powder 80g; milk 244g; honey 340g; oil 218g. Density varies massively — same volume can be 80g (cocoa) to 340g (honey). Scooping vs spooning flour changes weight 20-30%. Sift flour for cakes (5-10% lighter); never sift bread flour. UK recipes avoid this confusion by using weight only.

Common UK baking conversions. Self-raising flour = plain + baking powder (1tsp BP per 100g flour). Caster vs granulated sugar: caster dissolves quicker (cakes); granulated for crystalline textures. Double cream UK: 48% fat. Whipping cream UK: 36%. Single cream: 18% (won't whip). US heavy cream = UK whipping; US light cream = UK single. Butter: UK 'butter' default unsalted in baking recipes; salted in cooking. Eggs UK: medium = 58-64g; large = 64-73g.

Example: Converting 2 US cups of plain flour

  1. 2 US cups flour ≈ 250 g
  2. 2 US cups = 473 ml
  3. 2 US cups = 32 US tablespoons
  4. 2 US cups ≈ 8.8 oz

Source: BBC Good Food — Weights and measures

Frequently Asked Questions

UK vs US measurements — why recipes differ.
UK recipes: grams (weight) and millilitres (volume). US recipes: cups, tablespoons, ounces (volume for everything, including dry ingredients). 1 US cup = 237 ml. 1 UK 'cup' (rare in modern recipes) = 284 ml. 1 US tbsp = 14.79 ml ≈ 15 ml. 1 UK tbsp = 17.7 ml officially but most recipes treat as 15 ml. Imperial fluid ounce (UK) = 28.41 ml; US fl oz = 29.57 ml. Best practice: weigh everything in grams for precision baking.
Common UK kitchen conversions.
1 tsp = 5 ml; 1 dsp (dessertspoon) = 10 ml; 1 tbsp = 15 ml. Standard mug = 250-300 ml. Wine glass small 125 ml, medium 175 ml, large 250 ml. Pint UK = 568 ml (US pint = 473 ml). Tin of tomatoes 400g ≈ 400 ml. Pat of butter 25g. Tablespoon flour = 8g; sugar = 12g; salt = 18g. Heaped vs level: level matters in baking; heaped tolerated in soups and stews.
Oven temperatures — gas mark, °C and fan-assist.
Gas Mark 1=140°C/120°C fan; Gas 2=150/130; Gas 3=160/140; Gas 4=180/160 (most baking); Gas 5=190/170; Gas 6=200/180; Gas 7=220/200; Gas 8=230/210; Gas 9=240/220. Fan ovens run hotter — reduce conventional recipe by 20°C. Wait for oven to reach temp (10-15 min) before baking — most ovens read temp inaccurately, use a thermometer if precise. AGAs: '4-oven' models have different fixed temps: roasting 240°C, baking 180°C, simmering 140°C, warming 70°C.
Ingredient density — why volume-to-weight varies.
1 cup (237 ml) varies hugely: flour 125g, granulated sugar 200g, brown sugar packed 213g, butter 227g, rice 200g, oats 95g, cocoa powder 80g, milk 244g, honey 340g, oil 218g. Density matters: scooping vs spooning flour into cup changes weight by 20-30%. UK recipes avoid this by using grams. Sift flour first for cakes (5-10% lighter); never sift bread flour (need protein structure). When converting US recipes always use weight equivalents — never volume — for predictable results.