How to use the tbsp to grams converter
- Select whether you want to convert tablespoons to grams or grams to tablespoons.
- Enter the amount you wish to convert.
- Choose an ingredient from the list, or select Custom density and type the density in g/ml.
- The result updates instantly as you type.
How the tbsp to grams conversion works
A US tablespoon is defined as exactly 14.78676478125 milliliters. To perform a tbsp to grams conversion, multiply the number of tablespoons by this constant and then by the ingredient's density in grams per milliliter:
grams = tablespoons x 14.78676478125 x density
For example, 2 tablespoons of butter (density 0.96 g/ml) equals 2 x 14.78676478125 x 0.96 = 28.39 grams. To go the other way and convert grams to tablespoons, divide the mass by the density and then by the tablespoon volume:
tablespoons = grams / (density x 14.78676478125)
Density reference for common ingredients
The density of an ingredient determines how many grams fit into one tablespoon. Dry powders like flour trap air and have low densities, while syrups like honey are dense and heavy. Here are approximate bulk densities rounded from USDA FoodData Central and the King Arthur ingredient weight chart. Real weights of powders and syrups vary with brand, humidity and packing, so results are estimates; weigh on a scale when precision matters. Spooned flour in particular ranges from about 0.51 (King Arthur, 120 g per cup) to 0.53 g/ml (USDA, 125 g per cup):
| Ingredient | Density (g/ml) | Grams per tbsp |
|---|---|---|
| Water | 1.000 | 14.79 |
| Whole milk | 1.030 | 15.23 |
| Cooking oil | 0.920 | 13.60 |
| Butter | 0.960 | 14.20 |
| Honey | 1.420 | 21.00 |
| All-purpose flour (spooned) | 0.510 | 7.54 |
| Granulated sugar | 0.840 | 12.42 |
| Brown sugar (packed) | 0.900 | 13.31 |
| Powdered sugar (unsifted) | 0.480 | 7.10 |
| Cocoa powder | 0.360 | 5.32 |
| Fine table salt | 1.220 | 18.04 |
If you need to convert larger volumes, use the grams to cups converter. For smaller amounts, see the tsp to grams tool.
Why volume to weight conversions vary
A tablespoon measures volume, but recipes often require precision that only weight can provide. The same tablespoon holds about 15 grams of water but only about 7.5 grams of spooned flour. Scooping flour directly from the bag compacts it, raising the effective density and adding more grams per tablespoon than intended. This is why professional bakers weigh dry ingredients rather than relying on volume alone.
Temperature also affects density slightly. Warm oil is less dense than cold oil, meaning a tablespoon of hot oil weighs fractionally less. For everyday cooking these differences are negligible, but for precise baking or chemistry they matter. If you are working with pure liquids and need a direct mass calculation, the ml to grams converter skips the tablespoon step entirely.
Practical tips for measuring tablespoons
When converting tablespoons to grams at home, keep these points in mind:
- Use standard US measuring spoons. A flatware tablespoon from your cutlery drawer varies widely in size and will give inaccurate results.
- Level off dry ingredients with a straight edge. A heaped tablespoon of flour can weigh twice as much as a level one.
- For sticky ingredients like honey or molasses, lightly coat the spoon with cooking spray so the full amount releases cleanly.
- If your recipe lists weight in ounces instead, use the ounces to grams converter to align your measurements.
US vs metric tablespoons
This converter uses the US customary tablespoon, which is exactly 14.78676478125 ml. Australia uses a metric tablespoon defined as 20 ml, and the UK historically used a tablespoon closer to 17.7 ml before adopting 15 ml in modern metric recipes. If you are following an Australian recipe, the grams per tablespoon will be significantly higher than what this calculator shows for the same ingredient. Always check which standard your recipe assumes before converting.
Worked examples
| Example | Input | Result |
|---|---|---|
| 1 tablespoon of water | Conversion direction: tbsp-g; Amount: 1; Ingredient: water | Grams: 14.787; Tablespoons: 1; Density used: 1 g/ml; Milliliters: 14.787 |
| 3 tablespoons of honey | Conversion direction: tbsp-g; Amount: 3; Ingredient: honey | Grams: 62.992; Tablespoons: 3; Density used: 1.42 g/ml; Milliliters: 44.36 |
| 100 grams of flour to tablespoons | Conversion direction: g-tbsp; Amount: 100; Ingredient: flour | Tablespoons: 13.26; Grams: 100; Density used: 0.51 g/ml; Milliliters: 196.078 |
| 2 tablespoons of butter | Conversion direction: tbsp-g; Amount: 2; Ingredient: butter | Grams: 28.391; Tablespoons: 2; Density used: 0.96 g/ml; Milliliters: 29.574 |
FAQ
How many grams are in 1 tablespoon of water?
One US tablespoon of water weighs approximately 14.79 grams, since water has a density of 1.000 g/ml and one tablespoon is 14.7868 ml.
Can I convert grams to tablespoons with this tool?
Yes. Select "Grams to tablespoons" from the direction dropdown, enter your weight in grams, choose the ingredient, and the equivalent volume in tablespoons appears immediately.
Why does a tablespoon of flour weigh less than a tablespoon of sugar?
Flour is less dense than sugar. Spooned all-purpose flour has a density around 0.51 g/ml, giving roughly 7.5 grams per tablespoon, while granulated sugar is about 0.84 g/ml, yielding 12.4 grams per tablespoon.
Is a tablespoon always 15 ml?
A US tablespoon is exactly 14.78676478125 ml, often rounded to 15 ml in nutrition labeling. An Australian tablespoon is 20 ml, so the country of origin matters for accurate conversion.
What if my ingredient is not in the list?
Select "Custom density" from the ingredient dropdown and enter the density in grams per milliliter. You can usually find this value on the product packaging or in food science databases.
Does this work for non-food substances?
Yes. The math applies to any substance as long as you know its density in g/ml. Enter a custom density to convert tablespoons of paint, chemicals or other materials to grams.