40 Grams of Ground Cinnamon in Cups
40 grams of ground cinnamon doesn't land on a clean fraction, so the result below is calculated exactly rather than rounded to a common measure. Based on a density of 125g per cup, it equals 0.32 cups.
- Cups (US Customary)
- 0.32 (⅓)
- Tablespoons
- 5.1
- Teaspoons
- 15.4
- Milliliters
- 76 ml
40 grams of ground cinnamon = 0.32 cups (⅓ cup / 5.1 tbsp / 15.4 tsp)
Ground Cinnamon has a density of approximately 125g per cup. Ceylon and cassia cinnamon are similar in density. Tightly packed can run closer to 144g. Source: USDA FoodData Central. This is the figure used everywhere on this page, including the tablespoon and teaspoon values, so the numbers stay consistent whether you're reading the summary line, the table, or the FAQ answers below.
| Grams | Cups | Fraction | Tablespoons | Teaspoons |
|---|---|---|---|---|
| 30g | 0.24 | ¼ | 3.8 | 11.5 |
| 35g | 0.28 | ¼ | 4.5 | 13.4 |
| 40g | 0.32 | ⅓ | 5.1 | 15.4 |
| 45g | 0.36 | ⅜ | 5.8 | 17.3 |
| 50g | 0.40 | ⅜ | 6.4 | 19.2 |
How 40g Converts, Step by Step
40g divided by 125g (the weight of one cup of ground cinnamon) equals 0.32 cups. Multiplying that by 16 gives 5.1 tablespoons, and by 48 gives 15.4 teaspoons, since one cup always equals 16 tablespoons or 48 teaspoons regardless of the ingredient.
Ground Cinnamon is lighter than water, which weighs about 236g per cup. That's why 40g of ground cinnamon takes up more volume (76ml) than the same weight of water would (40ml). For a side-by-side look at how other ingredients compare, see the 40 grams to cups page.
If You're Using a Metric or Imperial Cup
The 0.32 cup figure above uses the US Customary cup (236.588ml). Recipes written outside the US sometimes use a metric cup (250ml) or an imperial (uk) cup (284.131ml) instead. At 40g, that's ⅓ metric cups or ¼ imperial cups of ground cinnamon, close to the US figure but not identical. The cup standard switch in the converter above recalculates this instantly for any gram amount.
Scaling This 40g Amount
Doubling a recipe that calls for 40g of ground cinnamon means weighing 80g, or measuring 0.64 cups if you're working by volume instead of weight. Halving it means 20g, or 0.16 cups. Weight scales exactly with simple multiplication; cup measurements compound any scooping error each time they're doubled or halved, so weighing is more reliable the more a recipe is scaled.
Where This Amount Shows Up in Recipes
- Cinnamon rolls typically use 10g to 15g in the filling.
- Spiced baked goods often call for just 3g to 6g (1 to 2 teaspoons).
- Mulled cider recipes usually need 1 to 2 cinnamon sticks or 3g ground.
Measuring This Precisely
Spices & Herbs
Spoon lightly into a measuring spoon and level with a straight edge. Ground spices settle quickly, so avoid tapping the spoon.
For exact results
Freshly ground spices are typically denser than pre-ground, store-bought versions, which lose some volume as they age and settle in the container over time.
For every gram amount at once, the ground cinnamon conversion chart lists ground cinnamon across the full range from 1g to 1000g in one table.
Frequently Asked Questions
What is 40 grams of ground cinnamon in cups exactly?+
40 grams of ground cinnamon equals 0.32 cups, based on a density of 125g per cup.
Why doesn't 40g of ground cinnamon match a simple fraction?+
40g isn't a multiple of ground cinnamon's per-cup weight, so the cup value lands between common fractions. The closest practical measure is ⅓ cup.
What's the most reliable way to measure 40g of ground cinnamon?+
A kitchen scale set to grams gives an exact 40g reading. Cups only approximate this amount, since ⅓ cup rounds to the nearest practical fraction.
Is 40g likely a typo for a rounder amount?+
Possibly, if a recipe seems to expect a cleaner number. Check the nearby amounts table below for the closest common gram values for ground cinnamon.