Rex says
The fast lane for the math you almost remember from school. Type the numbers, get the answer, move on with your day.
Try a scenario
Click to load — tweak from there.Inputs
Result
Finished bottles
7,329
Cases (12-bottle equivalent)
610.7
Net finished gallons
1452.0
Gross juice gallons before loss
1650.0
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter tons of grapes.
- 2Enter expected gallons per ton.
- 3Enter process loss (racking/fining/filtration) (%).
- 4Enter bottle size.
- 5Read your finished bottles on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
Winemakers and vineyard owners planning a harvest need a fast answer to 'how many cases will this make,' and the rule-of-thumb answer of 60 gallons per ton skips over the losses that happen between crush and bottling. This calculator uses your expected gallons per ton (which varies with grape variety, press yield, and whether it's free-run or pressed juice), subtracts your expected process loss from racking and filtration, and converts the result into finished bottles and cases. It's useful both for pre-harvest production planning and for reconciling actual yield against a harvest contract, since custom crush facilities and cooperatives often bill or pay based on tons delivered while the winery cares about bottles produced.
Worked example
Using the values the calculator loads with:
Inputs
- Tons of grapes: 10
- Expected gallons per ton: 165
- Process loss (racking/fining/filtration): 12 %
- Bottle size: 750ml (standard)
Results
- Finished bottles: 7,329
- Cases (12-bottle equivalent): 610.7
- Net finished gallons: 1,452
- Gross juice gallons before loss: 1,650
What each field means
Inputs
- Tons of grapes
- The tons of grapes used in the calculation. Starts at 10 so you have a working example on load.
- Expected gallons per ton
- The expected gallons per ton used in the calculation. Starts at 165 so you have a working example on load. Accepted range: 100–200.
- Process loss (racking/fining/filtration) (%)
- The process loss (racking/fining/filtration) used in the calculation, measured in %. Starts at 12 % so you have a working example on load. Accepted range: 0–40 %.
- Bottle size
- Pick the option that matches your situation — the maths changes per option. Choices: 375ml (half bottle), 750ml (standard), 1.5L (magnum).
Results
- Finished bottles
- Returned as a whole number and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Cases (12-bottle equivalent)
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Net finished gallons
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Gross juice gallons before loss
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
Why does gallons per ton vary?
Free-run juice yields less per ton than juice that includes press fractions, and grape variety, ripeness, and berry size all shift the number. A common planning range is 150-170 gallons per ton for red varieties with moderate pressing, and up to 180-190 for some white varieties pressed harder.
How much should I budget for process loss?
A red wine aged in barrel with two or three rackings plus final filtration commonly loses 10-15% of volume from crush to bottle. A quick-turn white with minimal handling can lose as little as 5-8%. Sparkling wine made by traditional method loses more due to disgorgement.
Can I use this to check a custom crush invoice?
Yes. If your custom crush facility reports finished gallons or bottles that are meaningfully below what this calculator projects from your delivered tonnage, ask for a loss breakdown by stage (press, racking, filtration) to see where the gap is before assuming it's normal shrinkage.
Accuracy and limitations
- Results are rounded for display; the underlying calculation keeps full precision.
- Very large or very small inputs may hit floating-point limits in the browser.
- Inputs outside the accepted range are clamped rather than rejected.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Grape to Bottle Yield Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/wine-grape-to-bottle-yield
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/wine-grape-to-bottle-yield" target="_blank" rel="noopener">Grape to Bottle Yield Calculator — RevenueLab</a> (2026).</p>
Source: [Grape to Bottle Yield Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/wine-grape-to-bottle-yield) (2026).