Medical Device Sterilization Calculator

Calculate sterilization cycle parameters including exposure time, temperature, aeration time, and cost for steam, EtO, gamma, and plasma methods.

Inputs

Device Volume (cm³)

Material Type

Sterilization Method

Bioburden Level

Tab to move between fields

Results

Total Cycle Time

51 min

Sterilization Temperature134 °C

Exposure Time36 min

Aeration Time0 min

Estimated Cost per Cycle$7.00

How to Use This Calculator

Enter the device volume in cm³.
Select the material type: metal, plastic, rubber/silicone, or mixed materials.
Choose the sterilization method: steam (autoclave), EtO (ethylene oxide), gamma (radiation), or plasma (H₂O₂).
Select the bioburden level (low, medium, or high).
Review the resulting cycle time, sterilization temperature, exposure time, aeration time, and estimated cost per cycle.

How the result changes with Device Volume (cm³)

Device Volume (cm³)	Total Cycle Time
10,001	62 min
35,001	65 min
65,000	66 min
90,000	67 min

What each input means

Device Volume (cm³): Approximate volume of the device or load to be sterilized.
Material Type: 1 = metal, 2 = plastic, 3 = rubber/silicone, 4 = mixed materials.
Sterilization Method: 1 = steam (autoclave), 2 = EtO (ethylene oxide), 3 = gamma (radiation), 4 = plasma (H₂O₂).
Bioburden Level: 1 = low (clean room), 2 = medium (standard), 3 = high (contaminated).

What each result means

Aeration Time: Required for EtO to off-gas residual ethylene oxide.

How this is calculated

Worked example, using the default values

Identify Input Parameters
4 parameters
Device Volume (cm³) = 100, Material Type = 1, Sterilization Method = 1, Bioburden Level = 2 = 4 input(s) provided
Calculate Total Cycle Time
Total Cycle Time
51 = 51
Calculate Sterilization Temperature
Sterilization Temperature
134 = 134
Calculate Exposure Time
Exposure Time
36 = 36

Engine last updated August 6, 2026. Checked against 3 independently-derived tests — how we verify calculators.

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