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How Much Is 1 Ounce of Corn Syrup in Milliliters?

1 ounce of corn syrup equals 20.45 ml. That's 28.35g, and Corn syrup has a density of 328g per cup. Because ounces measure weight and milliliters measure volume, the result depends on the ingredient's density.

1 ounce of corn syrup
=
20.45ml
Try: 2 ounces = 40.90 ml 3 ounces = 61.35 ml 4 ounces = 81.79 ml 5 ounces = 102.24 ml
Compare: 1 ounce buttermilk = 27.38 ml 1 ounce coconut milk = 29.68 ml 1 ounce coconut oil = 30.77 ml
Convert a different ingredient
1 ounce of corn syrup is also
0.09 cup (cups) 1.38 tbsp (tablespoons) 0.69 fl oz (fluid ounces)
20.45

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 328g/cup × 236.588 = milliliters
  1. Start with 1 ounce of corn syrup
  2. Convert ounces to grams: 1 × 28.35 = 28.35g
  3. 1 cup of corn syrup = 328g
  4. 28.35g ÷ 328g/cup = 0.09 cups × 236.588 = 20.45 milliliters

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

Measuring Tip

For liquids, place your measuring cup on a flat surface and read at eye level. The bottom of the meniscus (the curve at the surface) should align with the measurement line.

Corn Syrup at Different Amounts

How corn syrup scales across common ounces measurements. Your amount (1 ounce) is highlighted.

1 oz20.45 ml2 oz40.90 ml3 oz61.35 ml4 oz81.79 ml5 oz102.24 ml6 oz122.69 ml8 oz163.59 ml10 oz204.49 ml

Other Amounts of Corn Syrup

Ounces Milliliters
1 ounce 20.45 ml
2 ounces 40.90 ml
3 ounces 61.35 ml
4 ounces 81.79 ml
5 ounces 102.24 ml
6 ounces 122.69 ml
8 ounces 163.59 ml
10 ounces 204.49 ml
12 ounces 245.38 ml
16 ounces 327.18 ml

Understanding the Units

What is an Ounce?

Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.

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 20.45 ml, based on corn syrup having a density of 328g 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 328 (grams per cup), then multiply by 236.588 to get milliliters. For 1 ounce: 1 × 28.3495 = 28.35g, then 28.35 ÷ 328 = 0.09 cups × 236.588 = 20.45 ml.
Weighing corn syrup on a kitchen scale is strongly recommended. It is thick and sticky, so it clings to measuring vessels. If you must measure by volume, lightly oil the measuring cup first so it slides out cleanly.
Temperature has a minimal effect on most cooking liquids. The density of corn syrup 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: 20.45 ml ÷ 236.588 = 0.0864315 cups, then 0.0864315 × 328g/cup = 28.35g, then 28.35g ÷ 28.3495 = 1 ounce. Or use the Milliliters to Ounces converter.
person Written by Sean Day verified Reviewed by CookingConvert update Last updated Apr 3, 2026