A cup of flour weighs 125 g and a cup of honey weighs 340 g. Weight and volume cannot be converted without knowing what is being measured.
Loaded with an example. Type over the amount.
Answer
2.1145US tbsp
30 g of butter is 2.1145 US tbsp
What each figure is
A weight and a volume are different kinds of quantity. These are the numbers that connect them.
- What you enteredYou chose thisthe figure in grams30 g
- The ingredientYou chose thiswithout this the question has no answer — see belowButter
- What it weighs227 g per US cup, or 0.9595 g per millilitre0.9595 g/ml
- The two sides in common unitsthe weight and the space it occupies, which is what density connects30 g = 31.2672 ml
- The answerthe same butter, measured in tablespoons (us, 14.8 ml)2.1145 US tbsp
About this figure
From the US stick convention — one cup is two sticks, half a pound, 227 g — rather than from measured density. That is what a recipe means by a cup of butter.
How that was worked out
Each step, and why it is that step.
Step 1 — Divide by the density
30 g ÷ 0.9595 g/ml = 31.2672 ml
Butter weighs 0.9595 g per millilitre. Dividing a weight by that gives the space it takes up — which is what a cup measures.
Step 2 — Turn millilitres into tablespoons (us, 14.8 ml)
31.2672 ml ÷ 14.7868 ml = 2.1145 US tbsp
One US tbsp holds 14.7868 ml.
Check it backwards: 2.1145 US tbsp × 14.7868 ml × 0.9595 g/ml = 30 g
The mistake this prevents
A converter that ignores the ingredient treats every millilitre as a gram, and would tell you 2.0288 US tbsp — out by 4.1%. Butter is lighter than water, and the gap is the whole reason this field exists.
Check this before you rely on it. A free everyday calculator, provided as a guide — not tax, accounting, financial or legal advice. The working is shown above so you can verify it against your own figures. See our terms of use.