Example preset
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Inputs
Results
| Total load (g) | — |
|---|---|
| Load rate (g/s) | — |
| Daily load (kg/day) | — |
| Target load amount (kg) | — |
|---|---|
| Target load amount (g) | — |
| — | — |
| — | — |
Sensitivity graph (MVP)
Assumptions and calculation formula
Formula used in this calculator
With concentration C (mg/L), flow rate Q (L/s), and period t (s), total load is M = C × Q × t.
The calculator converts units internally and also shows kg, g, g/s, and kg/day.
How reverse solve mode works
- Required concentration:
C = M / (Q × t) - Required flow rate:
Q = M / (C × t) - Required period:
t = M / (C × Q)
Reverse solve is unavailable when a denominator becomes zero.
Frequently asked questions
Can I use labels other than TN and TP?
Yes. The labels are only for display in the result table. The underlying calculation stays the same for any dissolved constituent as long as the concentration and flow units are consistent.
How do I get a daily load?
Enter a period of one day or choose day-based units, then read the daily mass from the result table. The same approach works for weekly, monthly, or event-duration loads.
Can I use this for legal or permit evaluation?
No. Treat it as a teaching aid and first-pass estimate only. Compliance work usually requires site-specific sampling rules, rounding rules, and regulatory definitions that are outside this page.
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Comments
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