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100 mL Cornstarch = 54.1g

100 mL of cornstarch weighs 54.1 grams (1.91 ounces or 0.12 pounds; 100 mL or 6.76 tablespoons in volume) when measured spooned & leveled at a verified bulk density of 128g per 236.6 mL US Customary cup.

Imperial weight: 1.91 oz (0.12 lb) • Volume: 100 mL (6.76 tbsp)

Batch
Measuring density
Converted Measure
100 mL Cornstarch (spooned & leveled) =
54.1 g
Physical scoop breakdown0.42 cups
1/3 cup
1 tbsp
1 ¼ tsp
Edit either side to reverseCornstarch chart →
Grams
54.1 g
Ounces
1.91 oz
US Cups
⅓ cup + 1 tbsp + 1 ¼ tsp
Metric (250mL)
0.4 c
Tablespoons
6.76 tbsp
Milliliters
100 mL

Kitchen note: Test-kitchen baseline uses spooned & leveled (128g/cup). Switching to dip scooped (145g/cup) changes each cup by 17g—use the packing toggle on the scale bench to match your recipe.

Batch Scaling Around 100 mL Cornstarch

Batch scaling conversion table around 100 mL of Cornstarch (0.5× to 3× recipe batches in grams, ounces, US cups, and milliliters)
Batch Scale Weight (g / oz) US Cups & Spoons Metric (mL)
Half Batch (0.5×) 27.1g (0.95 oz) 3 tbsp + 1 ¼ tsp 50 mL
Standard (1×) 54.1g (1.91 oz) ⅓ cup + 1 tbsp + 1 ¼ tsp 100 mL
1.5× Batch 81.2g (2.86 oz) ½ cup + 2 tbsp + ½ tsp 150 mL
Double Batch (2×) 108.2g (3.82 oz) ¾ cup + 1 tbsp + 1 ½ tsp 200 mL
Triple Batch (3×) 162.3g (5.73 oz) 1 ¼ cups + ¾ tsp 300 mL

Measuring 100 mL of Cornstarch in the Kitchen

Measured spooned & leveled at a verified bulk density of 128g per US cup, 100 mL of cornstarch weighs 54.1 grams (1.91 ounces). Measured using the dip scooped method (145g/cup), that same 100 mL holds 61.3g — a 7.2g difference in your mixing bowl.

Cornstarch packs easily into a solid cake when pressed; scoop gently with a spoon and sweep level with a straightedge.

Source note: USDA FDC #169698 & Argo technical specifications

Frequently Asked Questions

How many grams is 100 mL of cornstarch? ▾

100 mL of cornstarch measured spooned & leveled weighs 54.1 grams (1.91 ounces).

Why must cornstarch be dissolved in cold liquid first? ▾

Adding dry cornstarch directly to hot liquid gelatinizes the surface instantly, causing stubborn lumps.

Is cornstarch in the UK called cornflour? ▾

Yes, British recipes calling for cornflour mean pure white refined cornstarch (128g/cup), not yellow cornmeal.