20 US Gallons to UK Gallons
20 gal ≈ 16.65 UK gal
20 US gallons is approximately 16.65 UK gallons.
How to convert 20 gal to UK gal
Use the formula UK gal = gal × 0.83267384:
UK gal = 20 × 0.83267384UK gal = 16.653484
So 20 gal = 16.653484 UK gal, or about 16.65 UK gal rounded.
Rounded values and quick estimate
- Rounded to a whole number: 17 UK gal
- Rounded to one decimal place: 16.7 UK gal
- Conversion factor: 1 US gallon = 0.8327 UK gallons
Quick mental estimate: multiply by 5/6. For 20 gal that gives about 16.67 UK gal — within 1% of the exact answer. Use the exact formula when precision matters.
20 US Gallons in other units
- UK gallons
- 16.65 UK gal
- Milliliters
- 75708.24 ml
- Liters
- 75.71 L
- Teaspoons
- 15360 tsp
- Tablespoons
- 5120 tbsp
- US fluid ounces
- 2560 fl oz
- US cups
- 320 cups
- US pints
- 160 pt
- US quarts
- 80 qt
- Cubic centimeters
- 75708.24 cc
- Cubic inches
- 4620 cu in
- Cubic feet
- 2.67 cu ft
- Drops
- 1514164.71 drops
- Oil barrels
- 0.4762 bbl
- Cubic meters
- 0.0757 m³
- Cubic yards
- 0.099 cu yd
20 gal and nearby values
| US gallons | UK gallons |
|---|---|
| 16 gal | 13.32 UK gal |
| 17 gal | 14.16 UK gal |
| 18 gal | 14.99 UK gal |
| 19 gal | 15.82 UK gal |
| 20 gal | 16.65 UK gal |
| 21 gal | 17.49 UK gal |
| 22 gal | 18.32 UK gal |
| 23 gal | 19.15 UK gal |
| 24 gal | 19.98 UK gal |
About us gallons and uk gallons
A US gallon is 128 US fluid ounces, exactly 3.785411784 liters. (The UK imperial gallon is 4.546 liters.)
An imperial (UK) gallon is exactly 4.54609 liters — about 20% larger than a US gallon.
Related conversions
Frequently asked questions
What is 20 US Gallons in UK Gallons?
20 US gallons is about 16.65 UK gallons (20 gal ≈ 16.65 UK gal).
How do you convert 20 gal to UK gal?
Apply UK gal = gal × 0.83267384: UK gal = 20 × 0.83267384, UK gal = 16.653484.
How many US gallons is 16.65 UK gal?
16.65 UK gal is about 20 US gallons.