Gallons to litres (UK)
Common values
| From (gal) | To (L) |
|---|---|
| 0 | 0.000 |
| 0.2 | 0.757 |
| 0.4 | 1.514 |
| 0.6 | 2.271 |
| 0.8 | 3.028 |
| 1 | 3.785 |
| 1.2 | 4.542 |
| 1.4 | 5.300 |
| 1.6 | 6.057 |
| 1.8 | 6.814 |
| 2 | 7.571 |
One UK (imperial) gallon equals 4.54609 litres. Multiply your UK gallons by 4.546 to get litres.
Formula: litres = UK gallons × 4.54609
- 1 UK gal = 4.546 L
- 5 UK gal = 22.73 L
- 10 UK gal = 45.46 L
- 20 UK gal = 90.92 L
Converting UK gallons to litres is needed when comparing with metric-specified products, following EU-format instructions, or when a UK central heating system quotes its capacity in gallons and you need litres for chemical dosing.
UK hot water cylinders are often rated in gallons: a 25-gallon cylinder = 113.6 L. Swimming pools in UK leisure centres: 25-metre pool holds approximately 750,000 litres (165,000 UK gallons). Older British recipes: 1 pint = 568 mL (UK); vs US pint = 473 mL.
Frequently asked questions
- How many litres is 10 gallons (UK)?
- 10 UK gallons = 45.46 litres.
- What is 25 UK gallons in litres?
- 25 UK gallons = 113.6 litres.
- Is a UK pint bigger than a US pint?
- Yes — UK pint = 568 mL; US pint = 473 mL. The UK pint is about 20% larger.
Related converters: Unit converter