Convert Grams to Cups: Water
Convert grams of water back to cups with this complete reference table. Starting from 240g = 1 cup, use the table below to find cups for any gram amount. This reverse conversion is useful when a recipe specifies grams but you only have measuring cups available. Note: 1 US cup = 240ml = 16 tablespoons.
Water Grams to Cups Table
| Grams | Cups |
|---|---|
| 25g | 0.1 cups |
| 50g | 0.21 cups |
| 75g | 0.31 cups |
| 100g | 0.42 cups |
| 125g | 0.52 cups |
| 150g | 0.63 cups |
| 200g | 0.83 cups |
| 250g | 1.04 cups |
| 300g | 1¼ cup |
| 400g | 1⅔ cups |
| 500g | 2.08 cups |
| 750g | 3.13 cups |
Based on USDA FoodData Central data (1 US cup = 240ml = 16 tablespoons = 48 teaspoons). Note: Water is the reference point for all density measurements. 1 cup (240ml) = 240g exactly. All liquid measurements in recipes assume water-like density unless specified. Use water as baseline for density calculations.
About Water Density
The density of water determines how much it weighs per unit of volume. At 1g/ml, 1 US cup (240ml) of water weighs 240g under USDA standard conditions.
Volume measurements can vary by ±10–20% depending on technique (sifted vs. spooned vs. scooped). For consistent baking results, use a kitchen scale with gram measurements whenever possible. The USDA standard (spooned-and-leveled) is the reference point for all values on this page.
Frequently Asked Questions
How many cups is 100g of water?
100g of water equals approximately 0.42 cups (based on 240g per 1 US cup).
How many cups is 200g of water?
200g of water equals approximately 0.83 cups.
How many cups is 500g of water?
500g of water equals approximately 2.08 cups.
Why convert grams to cups for water?
When a recipe lists grams but you only have measuring cups, you need to convert back. 240g = 1 cup is your baseline. Use a kitchen scale for the most accurate results.