Pantry & Condiments
Convert millilitres of ketchup to grams
One millilitre of ketchup weighs about 1.15 g, and half a millilitre comes to roughly 0.577 g. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 ml of ketchup =
1.15 g
- oz
- 0.041
- kg
- 0.0012
- lb
- 0.0025
Ketchup: 273 g per US cup · USDA FoodData Central. Sugar and tomato solids make ketchup noticeably denser than water.
Full ketchup chart →Ketchup at a glance
Every number on this page comes from a single figure: 273 grams per US cup (USDA FoodData Central).
- 1 cup
- 273 g
- 1 tablespoon
- 17.1 g
- 1 teaspoon
- 5.69 g
- 1 cup in ounces
- 9.63 oz
- 100 g in cups
- 0.366 cups
- Density
- 1.15 g/ml
millilitres to grams chart for ketchup
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Millilitres | Grams | Ounces (weight) | Pounds |
|---|---|---|---|
| 15 ml | 17.3 g | 0.611 oz | 0.038 lb |
| 30 ml | 34.6 g | 1.22 oz | 0.076 lb |
| 50 ml | 57.7 g | 2.04 oz | 0.127 lb |
| 60 ml | 69.2 g | 2.44 oz | 0.153 lb |
| 100 ml | 115 g | 4.07 oz | 0.254 lb |
| 120 ml | 138 g | 4.88 oz | 0.305 lb |
| 150 ml | 173 g | 6.11 oz | 0.382 lb |
| 200 ml | 231 g | 8.14 oz | 0.509 lb |
| 240 ml | 277 g | 9.77 oz | 0.611 lb |
| 500 ml | 577 g | 20.4 oz | 1.27 lb |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat ketchup as 273 g per US customary cup, which works out to 1.154 g/ml. From there:
- Your millilitres figure is converted into millilitres or grams using standard unit sizes (ml = 1 ml).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 3/8 cups.
Measuring ketchup accurately
Sugar and tomato solids make ketchup noticeably denser than water.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many grams are in 1 millilitre of ketchup?
1 millilitre of ketchup is 1.15 g. This is based on a density of 273 g per US cup.
How many grams are in 2 millilitres of ketchup?
2 millilitres of ketchup is 2.31 g, and 0.577 g for half a millilitre.
How much is 100 g of ketchup in cups?
100 g of ketchup is about 3/8 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for ketchup?
Sugar and tomato solids make ketchup noticeably denser than water.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.