Pressure Cooker Time Converter Calculator

Converter Inputs

Garden use

Select the garden task to label exports.

From device

The device and pressure you already use.

To device

The device you want to convert to.

From pressure (PSI)

Typical ranges: 10–15 PSI for many cookers.

To pressure (PSI)

Electric units often run around 10–12 PSI.

Known time (minutes)

Enter the time you already trust.

Altitude (meters)

Higher altitude can lower boiling temperatures.

Apply altitude adjustment

Adds a conservative penalty to target pressure.

Thermal z-value (°C)

Default 10°C is a common lethality estimate.

Safety factor (×)

Use 1.05–1.20 for extra margin.

Allow time reduction

If disabled, output time will never be shorter.

This converter estimates equivalent time using a temperature lethality relationship: t₂ = t₁ × 10^((T₁ − T₂)/z).

Temperatures T are approximated from common PSI steam points (0–15 PSI). Use tested preservation tables when safety depends on it.

Garden task	From PSI	To PSI	Input (min)	Output (min)
Harvest beans (pints)	15	11	30	≈ 45
Tomato sauce (quarts)	15	10	35	≈ 61
Broth for winter meals	15	12	20	≈ 26

Examples are illustrative only. For shelf-stable canning, follow tested processing times and altitude tables from reliable food safety authorities.

Harvest preserving

Use this as a planning helper when switching devices. Always verify with tested guidance for jars, foods, and altitude.

Tool sterilization

For pruning tools and soil gear, longer time is usually safer than shorter. Disable time reduction to keep conservative settings.

Consistent batches

Save each run as a CSV or PDF. Track what worked for your garden harvest size and device behavior over time.