--- title: "20 gal to L = 75.70824 L" description: "20 US gallons is 75.70824 liters. The arithmetic, a table of nearby values, and a converter for any other number." url: https://atoneplace.net/convert/20-gallons-to-liters/ site: "At One Place" --- # 20 gal to L **20 US gallons in liters: 20 gal = 75.70824 L** L = gal × 3.785411784 20 US gallons is 75.70824 liters. To get there, multiply by 3.785411784. ## Values either side *US gallons near 20, converted to liters.* | US gallons | Liters | | --- | --- | | 16 gal | 60.56659 | | 17 gal | 64.352 | | 18 gal | 68.13741 | | 19 gal | 71.92282 | | 20 gal ← | 75.70824 | | 21 gal | 79.49365 | | 22 gal | 83.27906 | | 23 gal | 87.06447 | | 24 gal | 90.84988 | ## How the conversion works The relationship is L = gal × 3.785411784. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two. > US gallon: US liquid gallon. The imperial gallon is about 20% larger. ## Common questions ### What is 20 gal in liters? 20 gal is 75.70824 L. ### How do you convert US gallons to liters? Multiply by 3.785411784. ## Related pages - [US gallons to liters](https://atoneplace.net/convert/gallons-to-liters/) - [20 L to gal](https://atoneplace.net/convert/20-liters-to-gallons/) - [16 gal to L](https://atoneplace.net/convert/16-gallons-to-liters/) - [17 gal to L](https://atoneplace.net/convert/17-gallons-to-liters/) - [18 gal to L](https://atoneplace.net/convert/18-gallons-to-liters/) - [19 gal to L](https://atoneplace.net/convert/19-gallons-to-liters/) - [21 gal to L](https://atoneplace.net/convert/21-gallons-to-liters/) - [22 gal to L](https://atoneplace.net/convert/22-gallons-to-liters/) - [23 gal to L](https://atoneplace.net/convert/23-gallons-to-liters/) - [24 gal to L](https://atoneplace.net/convert/24-gallons-to-liters/) ## Sources - Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)] - The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure) - Calculated on this page — At One Place (/about/)