Milk SNF Calculator
Calculate milk SNF (solids-not-fat) from the corrected lactometer reading (CLR) and fat percentage.
SNF% = (CLR ÷ 4) + (0.21 × fat%) + 0.36 (Richmond/ISI, CLR at 27°C). SNF is the protein, lactose and minerals in milk; FSSAI sets minimum SNF (often 8.5%) for cow milk. Low SNF can indicate watering or poor nutrition.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Dairy and livestock farmers use the free Milk SNF Calculator for an accurate answer in seconds — no formulas to remember, works offline at the farm.
About Milk SNF Calculator
SNF — solids-not-fat — is everything valuable in milk besides fat: protein, lactose and minerals. Dairies pay on both fat and SNF, and FSSAI sets a minimum SNF, so it directly affects your milk price and whether a sample passes. This tool computes SNF from the corrected lactometer reading and fat percentage using the standard Richmond formula, helping you check milk quality and spot adulteration (added water lowers SNF) or nutritional shortfalls.
How to use Milk SNF Calculator
- 1Enter your animal/herd figures into the inputs.
- 2Read the headline result and the supporting breakdown.
- 3Apply the guidance in the note to your feeding decisions.
Why use Milk SNF Calculator?
- ✓Uses the standard, citable dairy-nutrition formula
- ✓Clear inputs with sensible defaults
- ✓Instant result with the working shown
- ✓Free, fully in-browser and private
Frequently asked questions
How is milk SNF calculated?+
Using the corrected lactometer reading (CLR) and fat: SNF% = CLR/4 + 0.21 × fat + 0.36, with CLR taken at 27°C. The tool also reports total solids (SNF + fat).
What is the minimum SNF for cow milk?+
FSSAI standards commonly require at least 8.5% SNF for cow milk (with regional variation) and a minimum fat percentage. SNF below the standard suggests added water or poor animal nutrition.
Is this tool free and private?+
Yes — free, no sign-up, and all calculation runs in your browser, so it works offline at the farm and your data never leaves the device.
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