🫙 Harvest Canning Jar Estimator
Enter your total harvest weight and crop to estimate how many quart jars you'll need for canning, based on commonly published canning-yield references.
Pounds per quart, rounded up
Each crop carries a raw weight that fills one quart jar, and the division always rounds up because part of a jar still needs a jar:
jars = ceiling( total lbs / lbs per quart )| Crop | lbs per quart | Jars from 90 lbs |
|---|---|---|
| Tomatoes | 3 | 30 |
| Applesauce | 2.5 | 36 |
| Green beans | 1.5 | 60 |
| Pickles | 1.5 | 60 |
Ninety pounds of tomatoes divides cleanly into 30 jars. Ninety-one pounds gives 30.33, and the tool reports 31 - so the count creeps up a jar at a time rather than leaving you a quart short at the end of a long day.
Before you buy the jars
- Weigh what you will actually pack. These are prepared weights. Cores, stems, peel and the blemished half of a windfall all come off before anything goes in a jar.
- Pints are about half. A pint holds roughly half the weight of a quart, so the same harvest fills close to twice as many of them.
- Buy spare lids. Jars and rings are reusable, flat lids are not, and a failed seal on canning day is not the moment to run out.
Frequently asked questions
How many pounds of tomatoes fill a quart jar?
About 3 lbs. A 53 lb bushel therefore works out at roughly 18 quarts, which matches the figures published in most canning references.
How many quarts will 90 lbs of green beans make?
Sixty. Beans pack at about 1.5 lbs to the quart, twice as many jars per pound as tomatoes, and pickles work out the same way.
How do I work this out for pint jars?
Double the jar count and halve the weight each one takes. Ninety pounds of tomatoes that made 30 quarts will make roughly 60 pints.