Free · Other animals calculators 🐢

Pet Food Nutrients on a Dry Matter Basis

Convert supplied as-fed percentages to moisture-free percentages and compare two product analyses.

  • Formula & worked example
  • Private in your browser
  • No signup
Go to tool

Calculator inputs

Loading calculator…

How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

With 50% moisture, 20% protein, 10% fat and 5% fiber become 40%, 20% and 10% on a dry matter basis. The residual is 30%.

Dry-basis nutrient % = as-fed nutrient % ×100/(100−moisture%); residual =100−moisture−protein−fat−fiber.

Worked example

Enter these known values and leave the other values blank.

Protein
20 %
Fat
10 %
Fiber
5 %
Moisture
50 %
Others
15 %
Dry matter fat0
20 %
Dry matter protein0
40 %
Dry matter fiber0
10 %
Dry matter others0
30 %

Assumptions and limitations

  • This is an arithmetic comparison of supplied nutrient percentages, not a nutritional adequacy assessment. Guaranteed label minimums and maximums may not represent one measured composition.
  • Moisture must be at least zero and below 100%; all supplied components must be nonnegative and cannot together exceed 100%. The residual includes all unlisted constituents and is not automatically carbohydrate.
  • Both comparison products include the residual in the dry-basis total. Clearing an unknown supports the captured scalar inverses; zero numerator and denominator pairs do not uniquely determine moisture.

Common questions

What does the result describe?

This is an arithmetic comparison of supplied nutrient percentages, not a nutritional adequacy assessment. Guaranteed label minimums and maximums may not represent one measured composition.

References

Include the residual dry-matter component in the second product total and every corresponding inverse, matching the first product and mass-fraction conservation. Enforce the documented finite physical, count and denominator domains.

Explore other animals calculators 🐢 or browse all biology calculators.