--- title: "18 L to gal = 4.755097 gal" description: "18 liters is 4.755097 US gallons. The arithmetic, a table of nearby values, and a converter for any other number." url: https://atoneplace.net/convert/18-liters-to-gallons/ site: "At One Place" --- # 18 L to gal **18 liters in US gallons: 18 L = 4.755097 gal** gal = L × 0.2641720524 18 liters is 4.755097 US gallons. To get there, multiply by 0.2641720524. ## Values either side *Liters near 18, converted to US gallons.* | Liters | US gallons | | --- | --- | | 14 L | 3.698409 | | 15 L | 3.962581 | | 16 L | 4.226753 | | 17 L | 4.490925 | | 18 L ← | 4.755097 | | 19 L | 5.019269 | | 20 L | 5.283441 | | 21 L | 5.547613 | | 22 L | 5.811785 | ## How the conversion works The relationship is gal = L × 0.2641720524. 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 18 L in US gallons? 18 L is 4.755097 gal. ### How do you convert liters to US gallons? Multiply by 0.2641720524. ## Related pages - [Liters to US gallons](https://atoneplace.net/convert/liters-to-gallons/) - [18 gal to L](https://atoneplace.net/convert/18-gallons-to-liters/) - [14 L to gal](https://atoneplace.net/convert/14-liters-to-gallons/) - [15 L to gal](https://atoneplace.net/convert/15-liters-to-gallons/) - [16 L to gal](https://atoneplace.net/convert/16-liters-to-gallons/) - [17 L to gal](https://atoneplace.net/convert/17-liters-to-gallons/) - [19 L to gal](https://atoneplace.net/convert/19-liters-to-gallons/) - [20 L to gal](https://atoneplace.net/convert/20-liters-to-gallons/) - [21 L to gal](https://atoneplace.net/convert/21-liters-to-gallons/) - [22 L to gal](https://atoneplace.net/convert/22-liters-to-gallons/) ## 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/)