Water-to-Grain Ratio Calculator

Calculate strike water, sparge water, and total water needed for your all-grain brew day

Total weight of all grains in pounds.
lbs
Ratio of water to grain. Typical: 1.25-1.75 qt/lb.
qt/lb
Fly: continuous rinse. Batch: drain and refill. No-sparge: full volume mash.
Desired wort volume in the kettle before boiling.
gal

Results

Strike Water Volume:-qt
Sparge Water Volume:-gal
Total Water Needed:-gal
Grain Absorption:-gal
Mash Tun Space Needed:-gal
Reference: Grain absorption ~0.125 gal/lb (0.5 qt/lb). Palmer, How to Brew, 4th Ed. Grain displacement ~0.08 gal/lb.