Pectin Calculator

Calculate how much pectin and sugar you need for jam and jelly making based on fruit type and weight.

Fruit Weight

lbs

Fruit Pectin Level

Sugar Ratio

Tab to move between fields

Pectin Needed

16 tbsp

Pectin Packets3 packets

Sugar Needed2.4 lbs

Sugar5.4 cups

Estimated Jam Yield9.6 cups

How to Use This Calculator

Enter the weight of fresh fruit in pounds.
Select the fruit's natural pectin level (high, medium, or low).
Set the sugar-to-fruit ratio for your recipe.
The calculator shows pectin needed in tablespoons and packets, sugar needed in lbs and cups, and estimated jam yield in cups.
Combine fruit, pectin, and the calculated sugar to hit the target gel set every time.

How the result changes with Fruit Weight

Fruit Weight: Weight of prepared fruit (washed, peeled, crushed) in pounds.
Fruit Pectin Level: 1 = High-pectin (apples, citrus — no added pectin), 2 = Medium (blueberries, cherries — 2 tbsp/lb), 3 = Low (strawberries, peaches — 4 tbsp/lb).
Sugar Ratio: Sugar as a percentage of fruit weight. Traditional jams use 60-65%. Low-sugar recipes (below 50%) need 25% more pectin.

Identify Input Parameters
Fruit Weight = 4, Fruit Pectin Level = 3, Sugar Ratio = 60 = 3 input(s) provided
Calculate Pectin Needed
Pectin Needed
16 = 16
Calculate Pectin Packets
Pectin Packets
3 = 3
Calculate Sugar Needed
Sugar Needed
2.4 = 2.4