A recipe calls for "2 tablespoons" of something, and you need to know the weight in grams maybe for a nutrition label, maybe because your scale is more accurate than your spoon. Converting tablespoon to grams always comes down to one thing: what's actually filling the spoon.
Use the calculator above for an instant tablespoon to grams conversion for dozens of ingredients. If you need the reverse calculation, try our Grams to Tablespoons converter, or use our Grams to Cups converter for accurate volume conversions.
Below, you'll find a full chart, the exact formula, and the common myth that trips up almost everyone doing this conversion for the first time.
How Many Grams Is a Tablespoon? (Quick Answer)
A tablespoon measures volume, so the weight it holds depends entirely on what you're measuring. Here's a fast answer for common ingredients:
- 1 tablespoon of sugar ≈ 12.5 grams
- 1 tablespoon of butter ≈ 14.2 grams
- 1 tablespoon of flour ≈ 7.8 grams
- 1 tablespoon of honey ≈ 21 grams
- 1 tablespoon of oil ≈ 13.5 grams
- 1 tablespoon of salt ≈ 18 grams
- 1 tablespoon of cocoa powder ≈ 7.7 grams
- 1 tablespoon of peanut butter ≈ 16 grams
Is a Tablespoon 15 Grams? (Common Myth, Explained)
You'll often see "1 tablespoon = 15 grams" repeated online, and it's not entirely wrong it's just incomplete. That number is only accurate for water and water-like liquids, where 1 milliliter weighs almost exactly 1 gram.
The moment you swap in a different ingredient, that 15-gram rule breaks down:
- Flour is lighter than water, so 1 tablespoon weighs closer to 7.8 grams.
- Honey is heavier than water, so 1 tablespoon weighs closer to 21 grams.
- Salt is denser still, at around 18 grams per tablespoon.
So "is a tablespoon 15 grams" only has a yes-or-no answer for a small handful of liquids. For everything else, you need the ingredient's specific weight.
How Do I Convert Tablespoons to Grams? (The Formula)
Here's the formula behind every tablespoon to grams calculator, including ours:
Grams = Tablespoons × 14.79 × Density (g/mL)
Or, using an ingredient's known grams-per-tablespoon value:
Grams = Tablespoons × Grams-Per-Tablespoon
Worked Example: 2 Tablespoons of Sugar to Grams
- Sugar weighs about 12.5 grams per tablespoon.
- Multiply: 2 × 12.5 = 25.
- Answer: 2 tablespoons of sugar equals 25 grams.
Worked Example: 1 Tablespoon of Butter to Grams
- Butter weighs about 14.2 grams per tablespoon.
- Multiply: 1 × 14.2 = 14.2.
- Answer: 1 tablespoon of butter equals about 14.2 grams.
Tablespoon to Grams Conversion Chart
Here's a full chart covering the tablespoon amounts people search for most often, across four common ingredients.
| Tablespoons | Sugar | Butter | Flour | Honey |
| 1 tbsp | 12.5 g | 14.2 g | 7.8 g | 21 g |
| 2 tbsp | 25 g | 28.4 g | 15.6 g | 42 g |
| 3 tbsp | 37.5 g | 42.6 g | 23.5 g | 63 g |
| 4 tbsp | 50 g | 56.8 g | 31.3 g | 84 g |
| 10 tbsp | 125 g | 142 g | 78 g | 210 g |
| 12 tbsp | 150 g | 170.4 g | 93.8 g | 252 g |
Figures are rounded, based on the level (not heaped) US tablespoon.
12 Tablespoons of Butter to Grams
This one comes up a lot in recipes that measure butter by the stick. A standard US stick of butter is 8 tablespoons, so 12 tablespoons of butter is 1.5 sticks, or about 170 grams. If your recipe lists butter in tablespoons instead of sticks or grams, this conversion saves you from cutting a stick in an odd, imprecise place.
How Many Grams of Sugar to a Tablespoon?
To flip the question around: a level tablespoon holds about 12.5 grams of granulated sugar. Powdered sugar is lighter and fluffier, so a tablespoon of it weighs closer to 7.5 grams almost half the weight of the same spoonful of granulated sugar.
Tablespoon of Common Ingredients in Grams
Here's a quick-reference list for the ingredients people convert most often:
- Tablespoon of sugar in grams: 12.5g (granulated), 7.5g (powdered)
- Tablespoon of butter in grams: 14.2g
- Tablespoon of flour in grams: 7.8g
- Tablespoon of honey in grams: 21g
- Tablespoon of oil in grams: 13.5g
- Tablespoon of salt in grams: 18g
- Tablespoon of cocoa powder in grams: 7.7g
- Tablespoon of peanut butter in grams: 16g
US Tablespoon vs. Metric and Imperial Tablespoon
This is the part most conversion charts skip, and it's worth knowing if you cook from international recipes. There isn't just one "tablespoon" there are several:
| Tablespoon Type | Volume | Where It's Used |
| US Customary | 14.79 mL | Most American recipes |
| Metric (UK nutrition standard) | 15 mL | UK recipes, nutrition labels |
| Old Imperial (UK, pre-metric) | 18 mL | Older British cookbooks |
| Australian | 20 mL | Australian recipes |
The gap between the smallest (US, 14.79 mL) and largest (Australian, 20 mL) is over 35%. If a recipe doesn't specify which tablespoon it means, and the result seems off, this size difference is often the hidden cause especially in recipes that use a lot of tablespoon measurements, like spice blends or small-batch sauces.
Dry Measurement Conversion vs. Liquid Measurement Conversion
Liquids convert more predictably than dry ingredients, and it's worth knowing why.
Liquid ingredients (honey, oil, milk) fill a spoon evenly with no gaps, so their weight per tablespoon barely changes no matter who's measuring.
Dry ingredients (flour, cocoa powder, brown sugar) trap air between particles. A loosely spooned, leveled tablespoon gives you the standard weight but scooping directly from the container, or heaping the spoon, can add 15–25% more weight to the same tablespoon.
If your dry-ingredient conversions don't quite match a chart, check how the tablespoon was filled before assuming the chart is wrong.
Quick Bridge Conversions
Since tablespoons rarely appear alone in a recipe, here are the related conversions worth knowing:
- Tablespoon to mL: 1 tbsp = 14.79 mL (US) or 15 mL (metric)
- Teaspoon to grams: 1 tsp ≈ 1/3 of a tablespoon's weight (about 4.2g for sugar, 4.9g for water)
- Cup to grams: 1 cup = 16 tablespoons, so multiply your tablespoon value by 16
- Ounce to grams: 1 oz = 28.35 grams
- mL to grams: for water-like liquids, 1 mL ≈ 1 gram; for anything else, multiply by the ingredient's density
FAQ's
How many grams is a tablespoon?
It depends on the ingredient. A tablespoon of sugar is about 12.5 grams, a tablespoon of butter is about 14.2 grams, and a tablespoon of honey is about 21 grams. There's no single number that applies to every ingredient.
What is 1 tbsp in grams?
For water and similar liquids, 1 tablespoon is about 14.79 grams (often rounded to 15g). For baking ingredients, it varies: flour is about 7.8g, sugar is about 12.5g, and butter is about 14.2g per tablespoon.
How much does a tablespoon weigh?
A tablespoon itself doesn't have a weight it's a measure of volume. What it "weighs" depends entirely on what's filling it. An empty tablespoon of air weighs almost nothing; the same spoon filled with honey weighs about 21 grams.
Is a tablespoon 15 grams?
Only for water and liquids with a similar density. Most cooking ingredients weigh either more or less than 15 grams per tablespoon flour is lighter at about 7.8g, while honey is heavier at about 21g. Always check the specific ingredient.
How do I convert tablespoons to grams?
Multiply the number of tablespoons by the ingredient's grams-per-tablespoon value. For example, 3 tablespoons of butter × 14.2 grams per tablespoon ≈ 42.6 grams. The key is knowing the correct per-tablespoon weight for your specific ingredient, which is why a conversion chart or calculator is faster than guessing.
Sources
Ingredient densities on this page are based on standard culinary references, including the FAO/INFOODS Density Database and USDA FoodData Central. Tablespoon volume figures follow the U.S. FDA's guidelines for metric equivalents of household measures, and are consistent with NIST's published culinary measurement guidance.
Final Thoughts
Converting tablespoon to grams isn't complicated once you remember the one rule that matters: a tablespoon measures space, and grams measure weight, so the ingredient's density always has to be part of the math. Sugar, butter, flour, and honey all weigh differently in the exact same spoon, which is why "1 tablespoon = 15 grams" is only true for water.
You don't need to do any of this math by hand. Use the calculator at the top of this page for an instant, accurate tablespoon to grams conversion or bookmark the chart above for the next time a recipe hands you a spoon measurement instead of a scale reading.