How many grams are in a teaspoon? It depends on the ingredient: a US teaspoon holds about 4.2 g of granulated sugar, 6 g of table salt, 2.6 g of all-purpose flour, 4.6 g of baking powder and 4.93 g of water. A teaspoon measures volume and a gram measures mass. To convert one to the other you need the ingredient's density, which is how many grams fit in each milliliter. This grams to teaspoons converter takes that density from the portion weights the USDA publishes in FoodData Central. It converts in every direction between grams, teaspoons, tablespoons, cups, milliliters and ounces.
Pick an ingredient and enter an amount in any unit to see all the other units at once, plus the nearest level measuring spoon to reach for. If your ingredient isn't listed, choose "Other" and enter its density. You can also switch between the US customary spoon that NIST defines and the rounded 5 mL spoon used on nutrition labels. Every calculation is linkable, so you can send a converted recipe amount to someone else.
How to convert grams to teaspoons
- Find the grams per teaspoon for your ingredient. You can read it off the table below or from the calculator result. For example, sugar is 4.2 g per teaspoon.
- Divide the grams by that number. 10 g of sugar ÷ 4.2 = 2.38 tsp.
- Round to a spoon you own. 2.38 tsp is about 2 ⅜ tsp. The calculator rounds to the nearest ⅛ tsp. FDA label rules also express teaspoons as ⅛, ¼, ½, ¾, 1 or 2.
- For teaspoons to grams, multiply instead. 1½ tsp of salt × 6 g = 9 g.
If you know the density in grams per milliliter, the general formula is teaspoons = grams ÷ (density × 4.928 922). For tablespoons, use 14.786 76 mL in place of 4.928 922, and for cups use 236.588 2 mL. Those volumes come from NIST's Guide to the SI, Appendix B.9.
Grams per teaspoon, tablespoon and cup for common ingredients
Each row starts from a single household portion that USDA weighed, shown in the "USDA measure" column, and scales it to the other spoon sizes using the NIST volumes. The ingredients are measured level and spooned, not packed, except brown sugar, which USDA weighs packed. Click an FDC number to open that food's record in USDA FoodData Central.
| Ingredient | g per tsp | g per tbsp | g per cup | USDA measure | FDC ID |
|---|---|---|---|---|---|
| Water | 4.93 | 14.8 | 237 | 1 fl oz = 29.6 g | 173647 |
| Granulated sugar | 4.2 | 12.6 | 202 | 1 tsp = 4.2 g | 169655 |
| Brown sugar, packed | 4.6 | 13.8 | 221 | 1 tsp = 4.6 g | 168833 |
| Powdered sugar, unsifted | 2.5 | 7.5 | 120 | 1 tsp = 2.5 g | 169656 |
| Turbinado (raw) sugar | 4.6 | 13.8 | 221 | 1 tsp = 4.6 g | 170674 |
| Table salt | 6 | 18 | 288 | 1 tsp = 6 g | 173468 |
| All-purpose flour | 2.6 | 7.8 | 125 | 1 cup = 125 g | 168894 |
| Bread flour | 2.85 | 8.6 | 137 | 1 cup = 137 g | 168896 |
| Whole wheat flour | 2.5 | 7.5 | 120 | 1 cup = 120 g | 168893 |
| Cornstarch | 2.67 | 8 | 128 | 1 cup = 128 g | 169698 |
| Baking powder | 4.6 | 13.8 | 221 | 1 tsp = 4.6 g | 172803 |
| Baking soda | 4.6 | 13.8 | 221 | 1 tsp = 4.6 g | 175040 |
| Active dry yeast | 4 | 12 | 192 | 1 tsp = 4 g | 175043 |
| Cocoa powder, unsweetened | 1.8 | 5.4 | 86 | 1 tbsp = 5.4 g | 169593 |
| Butter | 4.73 | 14.2 | 227 | 1 tbsp = 14.2 g | 173410 |
| Olive oil | 4.5 | 13.5 | 216 | 1 tbsp = 13.5 g | 171413 |
| Canola oil | 4.67 | 14 | 224 | 1 tbsp = 14 g | 172336 |
| Whole milk | 5.08 | 15.2 | 244 | 1 cup = 244 g | 171265 |
| Heavy whipping cream | 5 | 15 | 240 | 1 tbsp = 15 g | 170859 |
| Honey | 7 | 21 | 336 | 1 tbsp = 21 g | 169640 |
| Maple syrup | 6.67 | 20 | 320 | 1 tbsp = 20 g | 169661 |
| Molasses | 6.67 | 20 | 320 | 1 tbsp = 20 g | 168820 |
| Peanut butter, smooth | 5.33 | 16 | 256 | 2 tbsp = 32 g | 172470 |
| Vanilla extract | 4.2 | 12.6 | 202 | 1 tsp = 4.2 g | 173471 |
| Ground cinnamon | 2.6 | 7.8 | 125 | 1 tsp = 2.6 g | 171320 |
| Ground black pepper | 2.3 | 6.9 | 110 | 1 tsp = 2.3 g | 170931 |
| Garlic powder | 3.1 | 9.3 | 149 | 1 tsp = 3.1 g | 171325 |
| Ground ginger | 1.8 | 5.4 | 86 | 1 tsp = 1.8 g | 170926 |
| Paprika | 2.3 | 6.9 | 110 | 1 tsp = 2.3 g | 171329 |
| Chili powder | 2.7 | 8.1 | 130 | 1 tsp = 2.7 g | 171319 |
| Ground turmeric | 3 | 9 | 144 | 1 tsp = 3 g | 172231 |
| Instant coffee powder | 1 | 3 | 48 | 1 tsp = 1 g | 171893 |
| Unflavored gelatin | 2.33 | 7 | 112 | 1 tbsp = 7 g | 169599 |
| Parmesan, grated | 1.67 | 5 | 80 | 1 tbsp = 5 g | 171247 |
| Rolled oats, dry | 1.69 | 5.1 | 81 | 1 cup = 81 g | 173904 |
| White rice, uncooked | 3.85 | 11.6 | 185 | 1 cup = 185 g | 168877 |
USDA weighed spoons and cups separately, so they don't always scale exactly. Sugar is 4.2 g per teaspoon, which works out to 202 g per cup, but USDA's own cup of sugar weighs 200 g. Table salt is 6 g per teaspoon, which scales to 288 g per cup, while USDA lists a cup at 292 g. Differences of 1–2% like these are normal for scooped dry goods. Small-spoon ingredients such as salt, sugar and leaveners use the teaspoon weight, because that is how recipes measure them. Flours and grains use the cup weight, because recipes measure them by the cup.
How many grams is a teaspoon of sugar, salt or baking powder?
These are the conversions people look up most, because baking recipes call for small leavening and seasoning amounts that are easy to get wrong. Here are the common fractional spoon sizes from ⅛ to 2 teaspoons:
| Teaspoons | Sugar | Table salt | Baking powder | Baking soda | Active dry yeast |
|---|---|---|---|---|---|
| ⅛ tsp | 0.53 g | 0.75 g | 0.58 g | 0.58 g | 0.5 g |
| ¼ tsp | 1.05 g | 1.5 g | 1.15 g | 1.15 g | 1 g |
| ½ tsp | 2.1 g | 3 g | 2.3 g | 2.3 g | 2 g |
| ¾ tsp | 3.15 g | 4.5 g | 3.45 g | 3.45 g | 3 g |
| 1 tsp | 4.2 g | 6 g | 4.6 g | 4.6 g | 4 g |
| 1¼ tsp | 5.25 g | 7.5 g | 5.75 g | 5.75 g | 5 g |
| 1½ tsp | 6.3 g | 9 g | 6.9 g | 6.9 g | 6 g |
| 2 tsp | 8.4 g | 12 g | 9.2 g | 9.2 g | 8 g |
A packet of active dry yeast is 7.2 g in USDA's data, or 1.8 teaspoons. That figure comes from USDA's 4 g teaspoon, so if your recipe gives yeast in packets, weighing the packet is more reliable than converting it to spoons. Baking powder and baking soda both come to 4.6 g per teaspoon in USDA's portion data. They look similar in the spoon, but they aren't interchangeable in a recipe.
Grams to teaspoons conversion chart
For recipes written in grams, especially European and professional baking formulas, use this chart to convert an amount back to spoons:
| Grams | Water | Sugar | Salt | Flour | Butter | Honey |
|---|---|---|---|---|---|---|
| 1 g | 0.2 tsp | 0.24 tsp | 0.17 tsp | 0.38 tsp | 0.21 tsp | 0.14 tsp |
| 2 g | 0.41 tsp | 0.48 tsp | 0.33 tsp | 0.77 tsp | 0.42 tsp | 0.29 tsp |
| 3 g | 0.61 tsp | 0.71 tsp | 0.5 tsp | 1.15 tsp | 0.63 tsp | 0.43 tsp |
| 5 g | 1.01 tsp | 1.19 tsp | 0.83 tsp | 1.92 tsp | 1.06 tsp | 0.71 tsp |
| 10 g | 2.03 tsp | 2.38 tsp | 1.67 tsp | 3.84 tsp | 2.11 tsp | 1.43 tsp |
| 15 g | 3.04 tsp | 3.57 tsp | 2.5 tsp | 5.76 tsp | 3.17 tsp | 2.14 tsp |
| 17 g | 3.45 tsp | 4.05 tsp | 2.83 tsp | 6.53 tsp | 3.59 tsp | 2.43 tsp |
| 20 g | 4.05 tsp | 4.76 tsp | 3.33 tsp | 7.68 tsp | 4.23 tsp | 2.86 tsp |
| 25 g | 5.07 tsp | 5.95 tsp | 4.17 tsp | 9.6 tsp | 5.28 tsp | 3.57 tsp |
| 30 g | 6.08 tsp | 7.14 tsp | 5 tsp | 11.52 tsp | 6.34 tsp | 4.29 tsp |
| 50 g | 10.14 tsp | 11.9 tsp | 8.33 tsp | 19.2 tsp | 10.56 tsp | 7.14 tsp |
| 100 g | 20.27 tsp | 23.81 tsp | 16.67 tsp | 38.4 tsp | 21.13 tsp | 14.29 tsp |
For amounts over about 3 teaspoons, it is easier to measure in tablespoons. Divide the teaspoon figure by 3: 20 g of sugar is 4.76 tsp, or 1.59 tbsp. 50 g of butter is 3.5 tbsp, which is a little under half of a 113 g stick.
Tablespoon to grams
A US tablespoon is exactly 3 teaspoons, or half a fluid ounce, as defined in NIST Handbook 44. That puts it at 14.79 mL. Fats and syrups are usually measured by the tablespoon:
- Butter: 14.2 g per tablespoon, so 8 tablespoons make a 113 g stick.
- Olive oil: 13.5 g per tablespoon. Oil is less dense than water, so a tablespoon of oil weighs less than a tablespoon of water.
- Honey: 21 g per tablespoon, about 42% heavier than water. Maple syrup and molasses come to 20 g each.
- Cocoa powder: only 5.4 g per tablespoon, because the fine powder holds a lot of air.
- Grated parmesan: 5 g per tablespoon.
Grams to cups for flour, sugar and butter
People also search for gram-to-cup conversions such as 150 grams to cups, 250 g to cups or 450 grams to cups. The same density method applies, with 236.59 mL per US cup. Flour depends most on how you fill the cup. USDA's 125 g cup assumes flour spooned into the cup and leveled off, not packed down.
| Grams | All-purpose flour | Bread flour | Sugar | Butter | Water |
|---|---|---|---|---|---|
| 50 g | 0.4 | 0.36 | 0.25 | 0.22 | 0.21 |
| 75 g | 0.6 | 0.55 | 0.37 | 0.33 | 0.32 |
| 100 g | 0.8 | 0.73 | 0.5 | 0.44 | 0.42 |
| 125 g | 1 | 0.91 | 0.62 | 0.55 | 0.53 |
| 130 g | 1.04 | 0.95 | 0.64 | 0.57 | 0.55 |
| 140 g | 1.12 | 1.02 | 0.69 | 0.62 | 0.59 |
| 150 g | 1.2 | 1.09 | 0.74 | 0.66 | 0.63 |
| 200 g | 1.6 | 1.46 | 0.99 | 0.88 | 0.84 |
| 220 g | 1.76 | 1.61 | 1.09 | 0.97 | 0.93 |
| 250 g | 2 | 1.82 | 1.24 | 1.1 | 1.06 |
| 300 g | 2.4 | 2.19 | 1.49 | 1.32 | 1.27 |
| 350 g | 2.8 | 2.55 | 1.74 | 1.54 | 1.48 |
| 450 g | 3.6 | 3.28 | 2.23 | 1.98 | 1.9 |
| 500 g | 4 | 3.65 | 2.48 | 2.2 | 2.11 |
| 600 g | 4.8 | 4.38 | 2.98 | 2.64 | 2.53 |
To use a figure like 1.2 cups, measure 1 cup and add the remainder in tablespoons. There are 16 tablespoons in a cup, so 0.2 cup is about 3 tablespoons.
Which teaspoon size does this use?
In the US, the teaspoon comes from the gallon. A US gallon is exactly 231 cubic inches and holds 128 fluid ounces. A fluid ounce is 2 tablespoons, and a tablespoon is 3 teaspoons. With 1 in³ fixed at exactly 16.387 064 mL, one teaspoon comes to 4.928 921 593 75 mL. NIST Handbook 44 notes that it rounds the teaspoon and tablespoon to the nearest milliliter (5 and 15 mL) because they are "imprecise units". Real spoons vary more than the gap between the exact and rounded values.
US nutrition labels use the rounded values by law. Under 21 CFR 101.9(b)(5)(viii), a teaspoon is 5 mL, a tablespoon is 15 mL and a cup is 240 mL for labeling. If you are checking the grams per teaspoon on a product label, choose the nutrition-label setting. The cup is where the two settings differ most, at 1.4%.
Why grams per teaspoon differ between ingredients
A spoonful of powder holds air between the particles. Fine, fluffy powders like cocoa, flour and ground spices weigh roughly half as much as the same spoon of water, or less. Dense crystals like salt, and thick liquids like honey, weigh more. How you fill the spoon matters as much as the ingredient. Dipping a spoon into a bag of flour packs it, while sifting aerates it. USDA's own data shows the effect: a cup of sifted powdered sugar weighs 100 g and an unsifted cup weighs 120 g, a 20% gap. Brown sugar changes by about half depending on packing: USDA lists 3 g for an unpacked teaspoon and 4.6 g for a packed one. Granulated table salt and coarse kosher salt are both "salt," but their crystals are shaped so differently that the same teaspoon can hold very different weights.
For that reason, bakers who need exact results weigh their ingredients. Use the gram figures here to translate a recipe into your own measuring spoons, or to check that a scooped amount is in the right range. Treat them as reference figures, not lab values.
Worked examples
A recipe calls for 8 g of salt
8 ÷ 6 = 1.33 tsp. Use 1¼ tsp plus a small pinch, or 1⅓ tsp if you have that spoon.
How many teaspoons of sugar are in 39 g?
Say a drink label lists 39 g of total sugars. 39 ÷ 4.2 = 9.3 teaspoons of granulated sugar.
Doubling 1¾ tsp of baking powder in grams
1.75 × 4.6 = 8.05 g, so a double batch needs 16.1 g. That is easier to weigh than to measure out as 3½ teaspoons.
200 g of flour in cups
200 ÷ 125 = 1.6 cups. Measure 1½ cups, then add 2 level tablespoons (⅛ cup).
Common mistakes
- Using a water conversion for everything. 1 tsp = 5 g is only true for water and water-like liquids. Salt is heavier, and flour is about half that.
- Heaping instead of leveling. All weights here are for level spoons. A heaped teaspoon holds noticeably more, and how much more varies from one scoop to the next.
- Confusing ounces of weight with fluid ounces. An ounce of weight is 28.35 g. A fluid ounce is a volume of 29.57 mL. The two match only for water.
- Swapping kosher salt for table salt by volume. Coarse salt weighs less per spoon. Convert by grams, using the grams per teaspoon printed on the box.
- Mixing up tbsp and tsp. A tablespoon is three times a teaspoon. "T" or "Tbsp" means tablespoon, and "t" or "tsp" means teaspoon.
To convert liquid volumes without weighing, use the mL to oz converter. For heavier liquids by the gallon, use the weight per gallon calculator. If you are baking for a party, the cake servings calculator helps size the batch first.
Frequently asked questions
How many grams is in a teaspoon?
It depends on the ingredient, because a teaspoon measures volume and a gram measures mass. A US teaspoon holds 4.93 mL, so it holds about 4.93 g of water, 4.2 g of granulated sugar, 6 g of table salt, 2.6 g of all-purpose flour and 4.6 g of baking powder (USDA FoodData Central).
How many g is a tsp of sugar?
USDA FoodData Central lists 1 teaspoon of granulated sugar at 4.2 g. Packed brown sugar is heavier at 4.6 g per teaspoon, and unsifted powdered sugar is lighter at 2.5 g.
How many grams is 1 teaspoon of salt?
USDA lists 1 teaspoon of table salt at 6 g and 1 tablespoon at 18 g. Coarse kosher salt and flaky sea salt hold more air between the crystals, so a teaspoon of them weighs less. Check the brand's label for its grams per teaspoon.
How many grams is a tablespoon?
A US tablespoon is 3 teaspoons, or 14.79 mL. That holds about 14.8 g of water, 12.6 g of sugar, 18 g of salt, 14.2 g of butter, 7.8 g of flour and 21 g of honey.
How do I convert grams to teaspoons?
Divide the grams by the ingredient's density in g/mL to get milliliters, then divide by 4.929 mL per US teaspoon. That is the same as dividing by the grams per teaspoon: 10 g of sugar ÷ 4.2 g/tsp = 2.38 tsp.
How many teaspoons is 5 grams?
5 g is 1.19 tsp of granulated sugar, 0.83 tsp of table salt, 1.09 tsp of baking powder, 1.01 tsp of water and 1.92 tsp of all-purpose flour.
What is 1/8 teaspoon in grams?
An eighth of a teaspoon is about 0.75 g of table salt, 0.53 g of sugar and 0.58 g of baking soda. At that size, a 0.1 g jeweler's scale is more accurate than a household kitchen scale.
How many cups is 150 grams?
150 g is 1.2 cups of all-purpose flour, 0.74 cups of granulated sugar and 0.66 cups of butter. The flour figure assumes USDA's 125 g cup. Scooping the cup straight from the bag packs the flour and makes each cup heavier.
How many cups is 250 grams?
250 g is 2 cups of all-purpose flour, 1.24 cups of sugar, 1.1 cups of butter and 1.06 cups of water.
Is a metric teaspoon different from a US teaspoon?
Yes, slightly. NIST defines the US customary teaspoon as 1/6 fl oz, which is 4.928 922 mL. FDA nutrition labels round it to 5 mL, the same as a metric teaspoon. The 1.4% difference doesn't matter in a recipe, but it explains why converters disagree in the second decimal.
How many grams is a stick of butter?
USDA lists 1 stick of butter at 113 g, 1 cup at 227 g and 1 tablespoon at 14.2 g. That makes a US stick 8 tablespoons, or ½ cup.
Sources & method
- NIST Handbook 44 (2026), Appendix C: 1 gal = 231 in³; 1 in³ = 16.387 064 cm³; 1 tbsp = 3 tsp = ½ fl oz; avoirdupois oz = 28.349 523 125 g
- NIST Guide to the SI (SP 811), Appendix B.9: teaspoon = 4.928 922 mL, tablespoon = 14.786 76 mL, cup (U.S.) = 236.588 2 mL
- 21 CFR 101.9(b)(5)(viii), FDA nutrition labeling: teaspoon = 5 mL, tablespoon = 15 mL, cup = 240 mL
- USDA FoodData Central, SR Legacy (April 2018): household-measure portion weights (food_portion table)
- USDA FoodData Central: Sugars, granulated (FDC 169655), 1 tsp = 4.2 g
- USDA FoodData Central: Salt, table (FDC 173468), 1 tsp = 6 g
- USDA FoodData Central: Wheat flour, white, all-purpose, enriched, bleached (FDC 168894), 1 cup = 125 g
Results are estimates for general information. Found an error? It helps everyone — see our methodology.