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Calcimator

Pressure Canning Calculator

Determine the correct PSI and processing time for pressure canning based on food type, jar size, and altitude.

Inputs

ft

Results

Required PSI

10 PSI

Processing Time

25 min

Base PSI (sea level)10 PSI
PSI Altitude Adjustment0 PSI
Food NameVegetables
Jar NamePint
How to Use This Calculator
  1. Select the food type you are canning (vegetables, meat, beans, etc.).
  2. Choose your jar size (half-pint, pint, or quart).
  3. Enter your altitude above sea level.
  4. The calculator returns required PSI, processing time, base PSI at sea level, and altitude PSI adjustment.
  5. Process jars at the indicated PSI for the full processing time, adjusting for your pressure canner type (dial vs. weighted gauge).

What each input means

Food Type
1 = Vegetables (25 min), 2 = Meat (75 min), 3 = Poultry (65 min). Base times for pint jars.
Jar Size
1 = Half-Pint (8 oz), 2 = Pint (16 oz), 3 = Quart (32 oz). Larger jars need longer processing.
Altitude
Your elevation in feet above sea level. Pressure must increase above 1,000 ft to ensure safe temperatures.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    Food Type = 1, Jar Size = 2, Altitude = 500 = 3 input(s) provided
  2. Calculate Required PSI
    10 = 10
  3. Calculate Processing Time
    25 = 25
  4. Calculate Base PSI
    Base PSI
    10 = 10
  5. Calculate PSI Altitude Adjustment
    0 = 0

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