The scale-first conversion

Oil to Butter in Grams

Grams remove cup packing and regional cup-size ambiguity. Enter the oil weight directly for the cleanest fat-matched result.

Oil to butter converter

Use

1.3 g

Which is also

Butter is about 80% fat, so you need more of it by weight to carry the same fat as oil.
About 80% fat, 16-17% water and milk solids. The water is why butter and oil are not a straight swap.

Show the maths

The exact weight formula is oil grams ÷ 0.80. Key benchmarks: 50 g oil = 62.5 g butter; 60 g oil = 75 g butter; 100 g oil = 125 g butter.

Common amounts

Source	Quick	Exact	Exact grams
25 g	32.5 g	31.3 g	31.25 g
50 g	65.1 g	62.5 g	62.5 g
60 g	78.1 g	75 g	75 g
80 g	104 g	100 g	100 g
100 g	130 g	125 g	125 g
125 g	163 g	156 g	156.25 g
150 g	195 g	188 g	187.5 g
200 g	260 g	250 g	250 g
250 g	325 g	313 g	312.5 g

What matters in the kitchen

Divide liquid oil weight by 0.80 to match the fat carried by ordinary butter.

For 50 g oil use 62.5 g butter; for 60 g oil use 75 g butter; for 100 g oil use 125 g butter (one standard European stick).

Place the mixing bowl on the scale, tare it, and add butter to the displayed gram value.

Calculations are fat-matched using official compositional benchmarks from the USDA FoodData Central and liquid density tables. Read our full methodology in our Editorial & Fact-Checking Policy.

Questions about this tool

What is the key result from the Oil to Butter in Grams?

The exact weight formula is oil grams ÷ 0.80. Key benchmarks: 50 g oil = 62.5 g butter; 60 g oil = 75 g butter; 100 g oil = 125 g butter.

What should I keep in mind when using this oil to butter in grams?

European-style and reduced-fat butters can differ from the 80% baseline; check the package when precision is critical.

Simple formula: what does that mean?

Divide liquid oil weight by 0.80 to match the fat carried by ordinary butter.