swap_horiz Need Milliliters to Ounces instead?

How Much Is 3.98 Ounces of Tomato Sauce in Milliliters?

3.98 ounces of tomato sauce equals 108.96 ml. That's 112.83g, and Tomato sauce has a density of 245g per cup. Because ounces measure weight and milliliters measure volume, the result depends on the ingredient's density.

3.98 ounces of tomato sauce
=
108.96ml
Try: 1 ounce = 27.38 ml 2 ounces = 54.75 ml 3 ounces = 82.13 ml 4 ounces = 109.50 ml
Compare: 3.98 ounces buttermilk = 108.96 ml 3.98 ounces coconut milk = 118.12 ml 3.98 ounces coconut oil = 122.45 ml
Convert a different ingredient
3.98 ounces of tomato sauce is also
0.46 cup (cups) 7.37 tbsp (tablespoons) 3.68 fl oz (fluid ounces)
108.96

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 245g/cup × 236.588 = milliliters
  1. Start with 3.98 ounces of tomato sauce
  2. Convert ounces to grams: 3.98 × 28.35 = 112.83g
  3. 1 cup of tomato sauce = 245g
  4. 112.83g ÷ 245g/cup = 0.46 cups × 236.588 = 108.96 milliliters

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

Liquid densities vary: oils weigh less per cup than water, while syrups and honey weigh more. This is why ingredient-specific conversions matter even for liquids.

Tomato Sauce at Different Amounts

How tomato sauce scales across common ounces measurements. Your amount (3.98 ounces) is highlighted.

1 oz27.38 ml2 oz54.75 ml3 oz82.13 ml3.98 oz108.96 ml4 oz109.50 ml5 oz136.88 ml6 oz164.26 ml8 oz219.01 ml

Other Amounts of Tomato Sauce

Ounces Milliliters
1 ounce 27.38 ml
2 ounces 54.75 ml
3 ounces 82.13 ml
3.98 ounces 108.96 ml
4 ounces 109.50 ml
5 ounces 136.88 ml
6 ounces 164.26 ml
8 ounces 219.01 ml
10 ounces 273.76 ml
12 ounces 328.51 ml
16 ounces 438.02 ml

Understanding the Units

What is an Ounce?

An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.

What is a Milliliter?

A milliliter (ml) is a metric unit of volume equal to 1/1000 of a liter. It is the standard volume measurement for cooking in most countries outside the US. One cup equals approximately 236.588 milliliters.

Frequently Asked Questions

About 108.96 ml, based on tomato sauce having a density of 245g per cup. The exact amount depends on how the ingredient is measured and the specific product.
First convert ounces to grams (1 ounce = 28.3495g), then divide by 245 (grams per cup), then multiply by 236.588 to get milliliters. For 3.98 ounces: 3.98 × 28.3495 = 112.83g, then 112.83 ÷ 245 = 0.46 cups × 236.588 = 108.96 ml.
For the most accurate results, weigh tomato sauce on a kitchen scale. If measuring by volume, use a liquid measuring cup on a flat surface and read the level at eye height.
Temperature has a minimal effect on most cooking liquids. The density of tomato sauce changes slightly with temperature, but the difference is usually less than 1-2% between refrigerator and room temperature. This conversion assumes room temperature.
Reverse the conversion: 108.96 ml ÷ 236.588 = 0.460535 cups, then 0.460535 × 245g/cup = 112.83g, then 112.83g ÷ 28.3495 = 3.98 ounces. Or use the Milliliters to Ounces converter.
person Written by Sean Day verified Reviewed by CookingConvert update Last updated Apr 3, 2026