TWA Calculator
Calculate Time-Weighted Average exposure for contaminants over a specified work period.
Add Measurement
Input contaminant concentration and the time period of exposure. The concentration unit will be locked after the first entry.
Measurements & Work Period
Review your entered data points and specify the total work period for TWA calculation.
No measurements added yet.
The duration of the full work shift (e.g., 8, 10, 12 hours).
Time-Weighted Average (TWA)
The calculated TWA based on the provided measurements and total work period.
Enter measurements and click "Calculate TWA" to see the result.