UK Gallons to Metric Cups Converter

How to convert imperial gallons to metric cups

Formulacup (metric) = gal (UK) × 18.18436

Multiply the value in imperial gallons by 18.18436. To go the other way, multiply by 0.05499231207 (or divide by 18.18436).

An imperial gallon is larger than a metric cup: one imperial gallon contains 18.18436 metric cups.

Worked examples

1 imperial gallon1 gal (UK) × 18.18436 = 18.18436 cup (metric)
5 imperial gallons5 gal (UK) × 18.18436 = 90.9218 cup (metric)
10 imperial gallons10 gal (UK) × 18.18436 = 181.8436 cup (metric)
20 imperial gallons20 gal (UK) × 18.18436 = 363.6872 cup (metric)
100 imperial gallons100 gal (UK) × 18.18436 = 1,818.436 cup (metric)

Imperial gallons to metric cups conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Imperial gallons to metric cups: 0.1–10 gal (UK)
Imperial gallons (gal (UK))	Metric cups (cup (metric))
0.1 gal (UK)	1.818436 cup (metric)
0.25 gal (UK)	4.54609 cup (metric)
0.5 gal (UK)	9.09218 cup (metric)
1 gal (UK)	18.18436 cup (metric)
2 gal (UK)	36.36872 cup (metric)
3 gal (UK)	54.55308 cup (metric)
4 gal (UK)	72.73744 cup (metric)
5 gal (UK)	90.9218 cup (metric)
6 gal (UK)	109.10616 cup (metric)
7 gal (UK)	127.29052 cup (metric)
8 gal (UK)	145.47488 cup (metric)
9 gal (UK)	163.65924 cup (metric)
10 gal (UK)	181.8436 cup (metric)

Imperial gallons to metric cups: 12–1,000 gal (UK)
Imperial gallons (gal (UK))	Metric cups (cup (metric))
12 gal (UK)	218.21232 cup (metric)
15 gal (UK)	272.7654 cup (metric)
20 gal (UK)	363.6872 cup (metric)
25 gal (UK)	454.609 cup (metric)
30 gal (UK)	545.5308 cup (metric)
40 gal (UK)	727.3744 cup (metric)
50 gal (UK)	909.218 cup (metric)
75 gal (UK)	1,363.827 cup (metric)
100 gal (UK)	1,818.436 cup (metric)
250 gal (UK)	4,546.09 cup (metric)
500 gal (UK)	9,092.18 cup (metric)
1,000 gal (UK)	18,184.36 cup (metric)

Converting cups and spoons to grams

Volume and weight are different quantities: a cup of flour weighs about 120 g, a cup of sugar about 198 g and a cup of water about 236 g. To convert cups or spoons to grams for a specific ingredient, use the cups to grams converter — popular: flour, sugar, butter, tablespoons of butter.

About the units

Imperial gallon (gal (UK))

Exactly 4.54609 L, about 1.2 US gallons. Used in the UK for fuel economy (mpg) figures. One imperial gallon equals 0.00454609 cubic meters (m³).

Metric cup (cup (metric))

Exactly 250 mL; used in Australian, New Zealand and Canadian recipes. One metric cup equals 0.00025 cubic meters (m³).

Frequently asked questions

How many metric cups are in one imperial gallon?

There are 18.18436 metric cups in one imperial gallon, and this value is exact by definition.

How do I convert imperial gallons to metric cups?

Multiply the number of imperial gallons by 18.18436. For example, 10 gal (UK) × 18.18436 = 181.8436 cup (metric).

How many imperial gallons are in one metric cup?

One metric cup equals 0.05499231207 imperial gallons. That is the reverse factor, 1 ÷ 18.18436.

What is 10 imperial gallons in metric cups?

10 gal (UK) = 181.8436 cup (metric).

Is this gal (UK) to cup (metric) converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.