--- title: "100 gal to qt = 400 qt" description: "100 US gallons is 400 US quarts. The arithmetic, a table of nearby values, and a converter for any other number." url: https://atoneplace.net/convert/100-gallons-to-quarts/ site: "At One Place" --- # 100 gal to qt **100 US gallons in US quarts: 100 gal = 400 qt** qt = gal × 4 100 US gallons is 400 US quarts. To get there, multiply by 4. ## Values either side *US gallons near 100, converted to US quarts.* | US gallons | US quarts | | --- | --- | | 80 gal | 320 | | 85 gal | 340 | | 90 gal | 360 | | 95 gal | 380 | | 100 gal ← | 400 | | 110 gal | 440 | | 120 gal | 480 | | 125 gal | 500 | | 150 gal | 600 | ## How the conversion works The relationship is qt = gal × 4. 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 100 gal in US quarts? 100 gal is 400 qt. ### How do you convert US gallons to US quarts? Multiply by 4. ## Related pages - [US gallons to US quarts](https://atoneplace.net/convert/gallons-to-quarts/) - [100 qt to gal](https://atoneplace.net/convert/100-quarts-to-gallons/) - [80 gal to qt](https://atoneplace.net/convert/80-gallons-to-quarts/) - [85 gal to qt](https://atoneplace.net/convert/85-gallons-to-quarts/) - [90 gal to qt](https://atoneplace.net/convert/90-gallons-to-quarts/) - [95 gal to qt](https://atoneplace.net/convert/95-gallons-to-quarts/) - [110 gal to qt](https://atoneplace.net/convert/110-gallons-to-quarts/) - [120 gal to qt](https://atoneplace.net/convert/120-gallons-to-quarts/) - [125 gal to qt](https://atoneplace.net/convert/125-gallons-to-quarts/) - [150 gal to qt](https://atoneplace.net/convert/150-gallons-to-quarts/) ## 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/)