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100 mL Water = 100.2g

100 mL of water weighs 100.2 grams (3.53 ounces or 0.22 pounds; 100 mL or 6.76 tablespoons in volume) when measured poured liquid at a verified bulk density of 237g per 236.6 mL US Customary cup.

Imperial weight: 3.53 oz (0.22 lb) • Volume: 100 mL (6.76 tbsp)

Batch
Measuring density
Standard: Poured liquid237g / cup
Converted Measure
100 mL Water (Poured liquid) =
100.2 g
Physical scoop breakdown0.42 cups
1/3 cup
1 tbsp
1 ¼ tsp
Edit either side to reverseWater chart →
Grams
100.2 g
Ounces
3.53 oz
US Cups
⅓ cup + 1 tbsp + 1 ¼ tsp
Metric (250mL)
0.4 c
Tablespoons
6.76 tbsp
Milliliters
100 mL

Kitchen note: 1 US Customary Cup (236.6 mL) of water (poured liquid) weighs 237g, while 1 International Metric Cup (250 mL) weighs 250g.

Batch Scaling Around 100 mL Water

Batch scaling conversion table around 100 mL of Water (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×) 50.1g (1.77 oz) 3 tbsp + 1 ¼ tsp 50 mL
Standard (1×) 100.2g (3.53 oz) ⅓ cup + 1 tbsp + 1 ¼ tsp 100 mL
1.5× Batch 150.3g (5.3 oz) ½ cup + 2 tbsp + ½ tsp 150 mL
Double Batch (2×) 200.3g (7.07 oz) ¾ cup + 1 tbsp + 1 ½ tsp 200 mL
Triple Batch (3×) 300.5g (10.6 oz) 1 ¼ cups + ¾ tsp 300 mL

Measuring 100 mL of Water in the Kitchen

Measured poured liquid at a verified bulk density of 237g per US cup, 100 mL of water weighs 100.2 grams (3.53 ounces).

Place a liquid measuring cup on a flat countertop and read the water meniscus at eye level. Standard water has a pure density of 1.00 g/mL, making 1 US cup exactly 237 grams (or 236.6g).

Source note: NIST Standard Reference Data; 1 US customary cup = 236.588 mL = 236.6 g pure water at 20°C

Frequently Asked Questions

How many grams is 100 mL of water? ▾

100 mL of water measured Poured liquid weighs 100.2 grams (3.53 ounces).

Why is 1 cup of water exactly 237 grams? ▾

One US customary cup equals 236.588 milliliters; since water has a metric density of 1 gram per milliliter at room temperature, it weighs 237 grams.

Does water temperature affect cup weight? ▾

Warm or cold water varies in density by less than 0.5% across normal cooking ranges, maintaining 237 grams for all culinary purposes.