Cornmeal — Grams & Cups Converter
1 cup of cornmeal (also called polenta) weighs about 157 g. So 100 g ≈ 5/8 cup, 200 g ≈ 1 1/4 cups, and 300 g ≈ 1 7/8 cups. Convert any amount between grams, cups, ounces, tablespoons and millilitres with the calculator below.
💡 Tip: Cornmeal and polenta are largely interchangeable, but polenta is usually coarser. Finer grinds pack heavier per cup — these figures are for medium grind.
Cups to grams chart for cornmeal
| Cups | Grams | Ounces |
|---|---|---|
| 1/4 | 39.3 | 1.38 |
| 1/3 | 52.3 | 1.85 |
| 1/2 | 78.5 | 2.77 |
| 2/3 | 105 | 3.69 |
| 3/4 | 118 | 4.15 |
| 1 | 157 | 5.54 |
| 1 1/2 | 236 | 8.31 |
| 2 | 314 | 11.1 |
| 3 | 471 | 16.6 |
Grams to cups chart for cornmeal
| Grams | Cups | Ounces |
|---|---|---|
| 10 | 1/8 | 0.35 |
| 25 | 1/8 | 0.88 |
| 50 | 1/3 | 1.76 |
| 75 | 1/2 | 2.65 |
| 100 | 5/8 | 3.53 |
| 125 | 3/4 | 4.41 |
| 150 | 1 | 5.29 |
| 200 | 1 1/4 | 7.05 |
| 250 | 1 5/8 | 8.82 |
| 300 | 1 7/8 | 10.6 |
| 500 | 3 1/8 | 17.6 |
Spoon reference: 1 tablespoon ≈ 9.81 g, 1 teaspoon ≈ 3.27 g.
Cornmeal, polenta and grind size
Cornmeal and polenta come from the same dried, ground corn and are largely interchangeable, but polenta is usually a coarser grind sold for slow cooking. Grind size changes the weight in your cup: medium cornmeal lands around 157 g per cup, while finer grinds pack heavier and coarse polenta a touch lighter. For US recipes, note that "cornflour" in Britain means cornstarch — a completely different white thickening powder, not ground cornmeal.
Use medium or coarse for cornbread and polenta where you want bite; fine cornmeal suits dusting pizza peels and coating fish.
Frequently asked questions
- How many grams is 1 cup of cornmeal?
- 1 US cup of cornmeal weighs about 157 grams (5.54 ounces).
- How many cups is 100g of cornmeal?
- 100 grams of cornmeal is about 5/8 cup.
- How many cups is 200g of cornmeal?
- 200 grams of cornmeal is about 1 1/4 cups.
- How many cups is 250g of cornmeal?
- 250 grams of cornmeal is about 1 5/8 cups.
- How many cups is 300g of cornmeal?
- 300 grams of cornmeal is about 1 7/8 cups.
- How many cups is 500g of cornmeal?
- 500 grams of cornmeal is about 3 1/8 cups.
- How many grams is ½ cup of cornmeal?
- Half a US cup of cornmeal is about 78.5 grams.
- How much does 1 cup of cornmeal weigh?
- 1 cup of cornmeal weighs about 157 grams, or roughly 5.54 ounces.
- How many grams in a tablespoon of cornmeal?
- About 9.81 grams per tablespoon (and roughly 3.27 g per teaspoon).
- Why do my numbers differ slightly?
- Density changes with how the cornmeal is packed, sifted or measured. For precise baking, weigh with a scale instead of using cups.
- How many grams is 2 cups of cornmeal?
- About 314 g, based on roughly 157 g per cup of medium grind.
- How many cups is 150g of cornmeal?
- Just under 1 cup.
- Is cornmeal the same as polenta?
- Largely, yes — both are ground dried corn and can be swapped. Polenta is typically a coarser grind sold for cooking into a creamy porridge, while cornmeal covers a range of grinds for baking and coating.
- Is cornmeal the same as cornflour?
- In the US, cornmeal is ground dried corn and cornstarch is the fine white thickener. In the UK, "cornflour" means cornstarch — so a British recipe's cornflour is not cornmeal.
- How many cups is a 1 lb bag of cornmeal?
- A 1 lb (454 g) bag is about 2 ⅞ cups of medium cornmeal.