Why a tablespoon-to-grams converter needs an ingredient picker
A tablespoon is a unit of volume — 15 millilitres in the US standard (14.787 to be exact, but rounded). A gram is a unit of mass. To convert between volume and mass you need to know the density of the substance, which depends entirely on what you're measuring.
Some examples of "1 tablespoon weighs how many grams?":
- Water: 15 g (the reference — 1 mL of water is 1 g)
- All-purpose flour, spooned and sifted: 7.8 g
- All-purpose flour, scooped and packed: 9.4 g
- Granulated white sugar: 12.5 g
- Brown sugar (always packed): 13.8 g
- Salt, table: 18 g (denser than water!)
- Salt, kosher (Diamond Crystal): 9.4 g — half as much as table salt for the same volume
- Honey: 21 g (denser than salt)
- Olive oil: 13.5 g (lighter than water)
- Cocoa powder: 5.4 g (very light)
The 4× range from cocoa powder (5.4) to honey (21) is why generic "tbsp = X grams" tables are useless. The Tablespoon to Grams Converter has 20+ pre-loaded common kitchen ingredients with accurate g/tbsp values, plus a custom-rate field for anything not in the list.
How to use the converter
- Pick a direction at the top: tbsp → g (you have a recipe in tablespoons and want grams) or g → tbsp (you have a weight and want to know the volume measure).
- Pick the ingredient from the dropdown. Note: flour has separate entries for sifted vs scooped (a 20% difference!), and salt has three different entries because crystal sizes vary so much.
- Enter the amount.
- The converted value appears with the calculation displayed. Tap Copy to grab a one-line summary for your recipe notes.
The flour packing trap
Flour is the ingredient that causes the most baking confusion. Two common methods of measuring:
Spoon and sweep (sifted) — ~7.8 g per tablespoon
Spoon flour LIGHTLY into the measuring cup until heaped, then level with the back of a knife. Don't pack, don't shake. This is what most American cookbooks (King Arthur, Bon Appetit, NYT Cooking) assume. A "cup" measured this way is 16 tbsp × 7.8 g ≈ 125 g.
Scooped (packed) — ~9.4 g per tablespoon
Dip the cup directly into the flour bag and shake/level it off. This compresses the flour. Same volume, but 20% more flour by weight. A "cup" this way is 16 tbsp × 9.4 g ≈ 150 g.
The difference between these two methods is enough to ruin a bread recipe (heavy, dense crumb if you over-flour) or make a cake too dry. If a recipe doesn't specify, "spoon and sweep" is the safer assumption. Better still: use a scale and weigh it.
Worked examples
2 tbsp of all-purpose flour (sifted)
2 × 7.8 g = 15.6 g. About half an ounce. A typical "thicken a sauce" amount.
1 tbsp of brown sugar (packed)
1 × 13.8 g = 13.8 g. Brown sugar is always packed (the brown comes from molasses, which makes the crystals stick together).
1 tbsp of butter (softened)
1 × 14.2 g = 14.2 g. Useful identity: 1 stick of US butter (½ cup = 8 tbsp) = 113 g (4 oz). 2 sticks = 1 cup = 226 g.
3 tbsp of honey
3 × 21 g = 63 g. Honey is the densest common kitchen liquid — over 2.5× heavier than the same volume of cocoa powder. When a recipe substitutes honey for sugar, the weight goes up significantly even when the volume doesn't.
50 g flour back to tablespoons
50 g ÷ 7.8 g/tbsp ≈ 6.4 tbsp. Or about 0.4 cup. Use g → tbsp mode when scaling a metric recipe down to American volume measures.
The salt confusion
Salt is the other ingredient where home cooks consistently get burned. The reason: "salt" can mean three very different things by volume.
Table salt — ~18 g per tablespoon
Fine, dense crystals. The cheapest. Iodized in most American grocery stores. Used in industrial food production and most home pantries.
Diamond Crystal kosher salt — ~9.4 g per tablespoon
Very flaky, light crystals. Beloved by professional chefs (because the bigger flakes are easier to grab and sprinkle accurately by hand). Note: only HALF the weight of table salt by volume.
Morton kosher salt — ~14.4 g per tablespoon
Denser than Diamond Crystal but flakier than table salt. The other major US kosher brand. Sits between the two extremes.
What this means in practice: a recipe written for "1 tbsp table salt" will be unsalted with 1 tbsp Diamond Crystal kosher (you'll need 2 tbsp). A recipe written for "1 tbsp Diamond Crystal kosher" will be lethally salty with 1 tbsp table salt (you'll need ½ tbsp). Most modern recipe writers (NYT Cooking especially) now specify which salt they tested with — pay attention.
US vs UK vs Australian tablespoons
Tablespoons are NOT internationally standardized:
- US tablespoon: 14.787 mL (typically rounded to 15). 3 teaspoons.
- UK / Imperial tablespoon: 17.758 mL. 3 UK teaspoons.
- Australian tablespoon: 20 mL exactly. 4 teaspoons (the only country where 1 tbsp ≠ 3 tsp).
- Metric tablespoon (some European countries): 15 mL.
This calculator uses the US standard (15 mL nominal). For UK recipes, multiply input by ~1.18 to get equivalent US tbsp. For Australian recipes, multiply by ~1.33. The differences are large enough to matter in baking but small enough to ignore in casual cooking.
Why grams beat tablespoons for baking
Professional bakers and most European home bakers use grams exclusively. The reasons:
- Reproducibility: 200 g is 200 g, period. "1 cup" is 120-160 g depending on how you scoop.
- Scaling: doubling a recipe in grams is a simple multiplication; doubling in cups requires "1 cup + 2 tbsp," which is awkward.
- Accuracy: digital kitchen scales are accurate to ±1 g; volume measures have inherent ±10-20% error.
- Speed: pour ingredient into bowl on scale until target weight; no measuring cups to wash.
The catch: most American cookbooks are still written in cups and tablespoons. Tools like this converter bridge the gap.
Common kitchen reference table
The most-used conversions, all approximate:
- 1 cup all-purpose flour (spooned) ≈ 125 g
- 1 cup all-purpose flour (scooped) ≈ 150 g
- 1 cup granulated sugar ≈ 200 g
- 1 cup brown sugar (packed) ≈ 220 g
- 1 cup powdered sugar ≈ 120 g
- 1 cup butter (2 sticks) = 226 g
- 1 cup milk ≈ 245 g
- 1 cup honey ≈ 340 g
- 1 cup olive oil ≈ 215 g
- 1 stick butter (½ cup) = 113 g
- 1 large egg ≈ 50 g (without shell)
- 1 large egg yolk ≈ 18 g
- 1 large egg white ≈ 32 g
Ingredient densities (g/mL) — source of truth
If you want to compute g/tbsp for an ingredient not in the picker, multiply density (g/mL) by 15 (the mL in a US tbsp):
- Water: 1.0 g/mL → 15 g/tbsp
- Olive oil: 0.92 g/mL → 13.5 g/tbsp
- Honey: 1.4 g/mL → 21 g/tbsp
- Maple syrup: 1.32 g/mL → 19.8 g/tbsp
- Whole milk: 1.03 g/mL → 15.5 g/tbsp
- Heavy cream: 1.0 g/mL → 15 g/tbsp
For solids (flour, sugar, salt), the bulk density depends on packing — there's no clean formula, just empirical measurements. Use the picker for those.
Common mistakes
- Using one g/tbsp number for everything. The whole point of the converter is that ingredient matters. "1 tbsp = 12 g" is wrong for water (15), wrong for flour (8), wrong for honey (21).
- Mixing up sifted and scooped flour. 20% difference. Match the recipe's method.
- Substituting between salt types without adjusting volume. Diamond Crystal kosher needs roughly 2× the volume of table salt for the same saltiness.
- Confusing US, UK, and AU tablespoons. US is 15 mL, UK is 17.8 mL, AU is 20 mL. Matters for baking.
- Confusing tbsp with tsp. 1 tbsp = 3 tsp (US/UK) or 4 tsp (AU). Don't substitute.
What the calculator gives you, summarized
- Bidirectional conversion — tbsp → g and g → tbsp.
- 20+ pre-loaded ingredients — flour (sifted/scooped/bread/cake), sugar (white/brown/powdered), salt (table/Diamond Crystal/Morton kosher), butter, honey, oils, milk, peanut butter, cocoa, rice, oats.
- Custom rate — for ingredients not in the list, enter your own g/tbsp value.
- Calculation transparency — formula with your numbers shown alongside the result.
- Education built in — flour and salt confusion called out inline so you don't make the classic mistakes.
One conversion, but conditional on what you're measuring. The right tool for following recipes accurately, scaling them up or down, or converting between American (volume) and European (mass) cooking conventions.