One gram of tomato sauce is 0.96566627 millilitres, so converting grams of tomato sauce to millilitres means multiplying by 0.96566627. That factor is specific to this ingredient — it comes from its density, not from any relationship between the two units.
Put next to water — 1 g per mL exactly — tomato sauce measures 1.0356 g per mL. That ratio, 103.6%, is what separates this page from every other ingredient in the same units, and it is measured rather than defined.
Tomato sauce has a density of 1.0356 g per mL, so 100 mL of it weighs 103.6 g and 250 mL weighs 258.9 g. That single figure is what every other number on this page is built from — water is 1.00 g per mL, so this ingredient is 103.6% as heavy as the same volume of water.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 0.408% of a cup of tomato sauce, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 2.041 cups, and a 1 kg pack 4.082.
The condition this weight assumes: Plain passata or smooth sauce, not paste. Concentrated tomato paste is considerably heavier per cup because most of the water has been driven off, so the two are not interchangeable by volume.
The formula
grams- The amount of tomato sauce you are converting, in grams
0.965666271429- Millilitres per gram for tomato sauce, from its density of 1.0356 g/mL
millilitres- The equivalent quantity in millilitres
How it works, step by step
- Enter the quantity in grams.
- It is multiplied by 0.965666271429, the millilitres-per-gram figure for tomato sauce.
- The result appears in millilitres, with a second reading in tsp beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
50 g of tomato sauce in millilitres
A recipe calling for 50 g of tomato sauce needs 48.2833 millilitres on the scale. The arithmetic is 50 × 0.96566627 = 48.283314, and halving the recipe halves the weight to 24.1417 millilitres.
150 g of tomato sauce in millilitres
Take 150 g of tomato sauce: 150 × 0.96566627 gives 144.85 millilitres. Doubling the batch takes it to 289.7 millilitres, because the relationship is a straight proportion once the density is known.
500 g of tomato sauce in millilitres
A recipe calling for 500 g of tomato sauce needs 482.833 millilitres on the scale. The arithmetic is 500 × 0.96566627 = 482.83314, and halving the recipe halves the weight to 241.417 millilitres.
How to read your score
Frequently asked questions
How many millilitres are in 1 g of tomato sauce?
One gram of tomato sauce is 0.96566627 millilitres. Half that quantity is 0.482833 millilitres and double it is 1.93133 millilitres, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of tomato sauce not 236 g like water?
Because weight per cup depends on what is in the cup. Tomato sauce has a density of 1.0356 g per mL where water has 1.00, so a cup of it weighs 245 g rather than 236.6 g. That is a difference of 8.4 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Barely. Tomato sauce does not compress, so a cup of it is 245 g however it is poured — within about 1%, which is inside the accuracy of a domestic scale. This is the group where measuring by volume is defensible.
Is a fluid ounce of tomato sauce the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of tomato sauce weighs 1.08 oz, so the two readings differ by 8.03%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of tomato sauce would weigh 258.89 g instead of 245 g — 13.9 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
At this size the spoon wins. One millilitre of tomato sauce is 1.036 g, and a scale reading to the nearest gram is working at 96.6% resolution on that — a measuring spoon is the more accurate instrument below about 5 g, which is why spice quantities are still written in spoons.
How much does 15 mL of tomato sauce weigh?
15 mL of tomato sauce comes to 15.533 g, or 15.533 grams. This page runs that calculation in reverse — enter a weight and it returns the volume — and the ml-to-grams page does it in the direction the question is usually asked.
Tomato sauce in grams and millilitres
| Grams | Millilitres | Unrounded |
|---|---|---|
| 5 g | 4.82833 mL | 4.828331357 |
| 10 g | 9.65666 mL | 9.656662714 |
| 25 g | 24.1417 mL | 24.14165679 |
| 50 g | 48.2833 mL | 48.28331357 |
| 100 g | 96.5666 mL | 96.56662714 |
| 125 g | 120.708 mL | 120.7082839 |
| 150 g | 144.85 mL | 144.8499407 |
| 200 g | 193.133 mL | 193.1332543 |
| 250 g | 241.417 mL | 241.4165679 |
| 300 g | 289.7 mL | 289.6998814 |
| 500 g | 482.833 mL | 482.8331357 |
| 1000 g | 965.666 mL | 965.6662714 |
Based on 245 g per cup of tomato sauce. One gram of tomato sauce is 0.96566627 millilitres.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 245 g | 8.64 oz | 236.6 mL |
| 3/4 cup | 183.8 g | 6.48 oz | 177.4 mL |
| 2/3 cup | 163.3 g | 5.76 oz | 157.7 mL |
| 1/2 cup | 122.5 g | 4.32 oz | 118.3 mL |
| 1/3 cup | 81.67 g | 2.88 oz | 78.86 mL |
| 1/4 cup | 61.25 g | 2.16 oz | 59.15 mL |
| 1 tbsp | 15.31 g | 0.54 oz | 14.79 mL |
| 1 tsp | 5.104 g | 0.18 oz | 4.929 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Skim milk | 245 g | 8.642 oz | 1.036 |
| Buttermilk | 245 g | 8.642 oz | 1.036 |
| Plain yogurt | 245 g | 8.642 oz | 1.036 |
| Tomato sauce (this page) | 245 g | 8.642 oz | 1.036 |
| Orange juice | 248 g | 8.748 oz | 1.048 |
| Evaporated milk | 252 g | 8.889 oz | 1.065 |
| Peanut butter | 258 g | 9.101 oz | 1.091 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.