To convert teaspoons of ground black pepper into grams, multiply by 2.2916667: one teaspoon comes to 2.2916667 grams. Every ingredient has its own figure here, because the units are measuring different things and only the density links them.
Water is the yardstick: 1 mL of it weighs 1 g. Ground black pepper comes in at 0.46494 g per mL, or 46.49% of water, which is why a cup of it is 110 g rather than 236.6 g. Volume and weight only line up for water, and only in metric.
A level teaspoon of ground black pepper weighs 2.292 g. A kitchen scale that reads to the nearest gram is therefore working at roughly 43.6% resolution on a single spoonful, which is why measuring spoons beat scales below about 5 g and lose to them above it. Three teaspoons make a tablespoon, so the same spoonful is 6.875 g if the recipe scales up.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 0.909% of a cup of ground black pepper, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 4.545 cups, and a 1 kg pack 9.091.
What the number depends on: Freshly ground is lighter per spoon than the pre-ground jar, which settles and compacts on the shelf.
The formula
teaspoons- The amount of ground black pepper you are converting, in teaspoons
2.29166666667- Grams per teaspoon for ground black pepper, from its density of 0.46494 g/mL
grams- The equivalent quantity in grams
How it works, step by step
- Enter the quantity in teaspoons.
- It is multiplied by 2.29166666667, the grams-per-teaspoon figure for ground black pepper.
- The result appears in grams, with a second reading in oz beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
3/4 tsp of ground black pepper in grams
A recipe calling for 3/4 tsp of ground black pepper needs 1.71875 grams on the scale. The arithmetic is 0.75 × 2.2916667 = 1.71875, and halving the recipe halves the weight to 0.859375 grams.
1 1/2 tsp of ground black pepper in grams
1 1/2 tsp of ground black pepper weighs out at 3.4375 grams. Divide 3.4375 by 2.2916667 and you get back to 1 1/2 tsp, which is the quickest check that the factor is the right way up.
4 tsp of ground black pepper in grams
4 tsp of ground black pepper weighs out at 9.16667 grams. Divide 9.16667 by 2.2916667 and you get back to 4 tsp, which is the quickest check that the factor is the right way up.
How to read your score
Frequently asked questions
How many grams are in 1 tsp of ground black pepper?
One teaspoon of ground black pepper is 2.2916667 grams. Half that quantity is 1.14583 grams and double it is 4.58333 grams, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of ground black pepper not 236 g like water?
Because weight per cup depends on what is in the cup. Ground black pepper has a density of 0.46494 g per mL where water has 1.00, so a cup of it weighs 110 g rather than 236.6 g. That is a difference of 126.6 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Yes, and by more than most people expect. Handling changes the weight of a cup of ground black pepper by roughly 20% — about 11 g either side of 110 g — because freshly ground is lighter per spoon than the pre-ground jar, which settles and compacts on the shelf. Weighing removes the question entirely.
Is a fluid ounce of ground black pepper the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of ground black pepper weighs 0.485 oz, so the two readings differ by 51.5%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of ground black pepper would weigh 116.24 g instead of 110 g — 6.24 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
At this size the spoon wins. One teaspoon of ground black pepper is 2.292 g, and a scale reading to the nearest gram is working at 43.6% resolution on that — a measuring spoon is the more accurate instrument below about 5 g, which is why spice quantities are still written in spoons.
How many teaspoons of ground black pepper is 500 g?
500 g of ground black pepper is 218.18 teaspoons — 0.436364 teaspoons to one gram, so 500 × 0.436364 = 218.18. Going that way is a division by 2.29167, or a multiplication by 0.436364 if you prefer.
Ground black pepper in teaspoons and grams
| Teaspoons | Grams | Unrounded |
|---|---|---|
| 1/4 tsp | 0.572917 g | 0.5729166667 |
| 1/2 tsp | 1.14583 g | 1.145833333 |
| 3/4 tsp | 1.71875 g | 1.71875 |
| 1 tsp | 2.29167 g | 2.291666667 |
| 1 1/2 tsp | 3.4375 g | 3.4375 |
| 2 tsp | 4.58333 g | 4.583333333 |
| 3 tsp | 6.875 g | 6.875 |
| 4 tsp | 9.16667 g | 9.166666667 |
| 6 tsp | 13.75 g | 13.75 |
Based on 110 g per cup of ground black pepper. One teaspoon of ground black pepper is 2.2916667 grams.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 110 g | 3.88 oz | 236.6 mL |
| 1 tbsp | 6.875 g | 0.243 oz | 14.79 mL |
| 2 tsp | 4.583 g | 0.162 oz | 9.858 mL |
| 1 tsp | 2.292 g | 0.0808 oz | 4.929 mL |
| 3/4 tsp | 1.719 g | 0.0606 oz | 3.697 mL |
| 1/2 tsp | 1.146 g | 0.0404 oz | 2.464 mL |
| 1/4 tsp | 0.5729 g | 0.0202 oz | 1.232 mL |
| 1/8 tsp | 0.2865 g | 0.0101 oz | 0.6161 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Ground cumin | 101 g | 3.563 oz | 0.4269 |
| Ground cloves | 101 g | 3.563 oz | 0.4269 |
| Ground nutmeg | 106 g | 3.739 oz | 0.448 |
| Ground black pepper (this page) | 110 g | 3.88 oz | 0.4649 |
| Paprika | 110 g | 3.88 oz | 0.4649 |
| Onion powder | 115 g | 4.057 oz | 0.4861 |
| Ground cinnamon | 125 g | 4.409 oz | 0.5283 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.