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Crude Protein Calculator
Estimate crude protein from nitrogen content using the Kjeldahl factor.
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Crude protein
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Estimate crude protein from nitrogen content using the Kjeldahl factor.
Crude Protein Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Crude protein = N% x 6.25.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Crude Quick Guide
Typical values for reference.
| Nitrogen % | Factor | Crude protein | Crude protein |
|---|---|---|---|
| 2.4 | 6.25 | 15.00% | 15.00% |
| 1.6 | 6.25 | 10.00% | 10.00% |
| 3.2 | 6.25 | 20.00% | 20.00% |
| 2.9 | 5.7 | 16.53% | 16.53% |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Crude Protein Calculator FAQ
Answers to common questions about this calculator.
An estimate of protein from total nitrogen.
Protein is about 16 percent nitrogen.
Yes, so it can overstate.
No, ask a nutritionist for rations.