Weight to Proof Gallons

Gauge spirits by scale: convert a net weight into wine gallons and proof gallons using the Gauging Manual's per-pound factors, and convert between wine and proof gallons.

Weight → gallons

Enter a net weight and the per-pound factors from the Gauging Manual’s Table 4 (for your spirit’s proof) to convert the weight to wine gallons and proof gallons.

Net weight (lb)

Wine gal / lb (Table 4)

Proof gal / lb (Table 4, optional)

Enter a net weight and its wine-gallon-per-pound factor to see the result.

Wine ↔ proof gallons

Convert between wine gallons and proof gallons at a given true proof (proof gallons = wine gallons × proof ÷ 100).

Convert

Wine gallons

Proof

Enter a gallons figure and a proof to see the result.

This is a quick estimate for reference — a tool, not an official TTB filing or gauge record. The per-pound factors come from the TTB Gauging Manual’s Table 4 for your spirit’s proof; results are rounded to a tenth of a gallon per 27 CFR §30.63/§30.64.

Reference tools, not a system of record. These free calculators are provided for convenience and general reference only. They are not a system of record and must not be used as the basis for any TTB or state compliance filing — even when a result is correct. Your official filings are governed by the applicable measurement and gauging methods and by your own production records.