Canning Calculator
Calculate how many canning jars you need from recipe yield and jar size.
Returns jar count for 4-oz, 8-oz, pint, and quart jars for home preserving projects.
Canning jar calculation helps you prepare the right number of jars for your recipe.
Formula:
Jars needed = Recipe yield (cups or liters) / Jar capacity
Standard jar sizes (US):
| Jar Size | Volume | Best For |
|---|---|---|
| 4 oz (quarter pint) | 118 mL | Jams, jellies, samples |
| 8 oz (half pint) | 237 mL | Jams, salsas, relishes |
| 12 oz (three-quarter pint) | 355 mL | Syrups, sauces |
| 16 oz (pint) | 473 mL | Fruits, pickles, sauces |
| 24 oz (pint and a half) | 710 mL | Fruits, juices |
| 32 oz (quart) | 946 mL | Vegetables, soups, stocks |
| 64 oz (half gallon) | 1893 mL | Juices (only for specific recipes) |
Common yields per batch:
- Jam/jelly: 6–8 half-pint jars per batch
- Tomato sauce: 7 quarts per bushel of tomatoes
- Pickles: 7–9 pints per 4 lbs cucumbers
- Salsa: 6 pints per batch
Always prepare extra jars — it is better to have 1–2 more jars ready than to run short mid-process. Add 10–15% extra.
Safety: Follow USDA guidelines for processing times and methods. Use tested recipes from trusted sources.
How we build and check this calculator
This calculator runs entirely in your browser, so the numbers you enter stay on your device. The math behind it is written by hand and tested against worked examples and standard references before the page goes live.
SuperGlobalCalculator is independently built and maintained. See how we build and verify our calculators.