Skip to content
Farming Calculators

Grain Moisture Loss (Shrink) Calculator

Find how much weight your grain loses when it dries from harvest moisture to safe storage moisture, and the price for wet grain that equals the dry price.

Grain
%

Freshly harvested paddy is often 20-25%.

%

Safe storage: wheat 10-12%, paddy 13-14%, maize 12-14%.

%
₹ / qtl

Something not working? Report a problem

What is the Grain Moisture Loss (Shrink) Calculator?

Freshly harvested grain holds a lot of water. As it dries, it gets lighter. This loss of weight is called shrink. It matters when you decide to sell wet grain now or dry it first.

Enter the weight, the moisture now, the target moisture and your price for dry grain. We show the final weight, water removed, shrink percentage and value. We also show the price per quintal of wet grain that would give you the same money as selling dry grain.

How to use it

  1. Enter the grain weight at harvest.
  2. Enter the moisture now and after drying.
  3. Add handling loss and the price for dry grain.
  4. Compare the wet-grain equal price with trader offers.

Why people like this tool

Correct formula

Uses dry matter, not a simple percent cut.

Shrink percent

Total weight loss from drying and handling.

Wet vs dry price

Know the fair price for wet grain.

Any unit

Kilogram, quintal or tonne.

How it works, in one picture

Infographic: how to use the Grain Moisture Loss (Shrink) Calculator in 4 easy steps: Enter your details, Add more details, Add the rest and See your result. You get: Correct formula, Shrink percent, Wet vs dry price and Any unit.

Frequently asked questions

How is moisture shrink calculated?
Final weight = starting weight × (100 − starting moisture) ÷ (100 − final moisture). Dry matter stays the same; only water goes.
Why is 20% to 14% more than a 6% loss?
Because the percentage is taken of the total weight, which also falls as water leaves. From 20% to 14%, the loss is about 7%, not 6%.
What moisture is safe for storage?
Wheat around 10-12%, paddy 13-14%, maize 12-14%. Higher moisture can cause fungus and insects.

You may also like