Formula
detention time=volume/flow.
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Ideal active-volume/flow ratio. Short circuiting and residence-time distribution are not predicted.
Example Calculation
Example inputs
- Active tank volume: 100 m³
- Steady flow: 20 m³/h
Active tank volume = 100; Steady flow = 20. Primary result: 5.
Frequently asked questions
How do I use this calculator?
Enter active tank volume, steady flow. The result updates automatically. Use Reset to restore the example values.
What method does it use?
detention time=volume/flow.. Ideal active-volume/flow ratio. Short circuiting and residence-time distribution are not predicted.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.