Packaging

Fill Weight Calculator — Pouch, Bottle & Container

Calculate fill weight for dairy product containers from density and fill volume. Check actual fill weight against declared net weight for compliance.

Fill Weight Calculator

Calculate expected fill weight from volume and density, or check fill weight compliance.

mL
Volume dispensed per pack in mL (e.g. 500 for 500mL pouch)
g/mL
Milk: 1.028–1.032 | Full cream: 1.030 | Cream: 1.005–1.010 | Ghee: 0.930
g
Optional: enter declared weight to calculate deviation and compliance check
Formula
fillVolume * density
fillVolume Fill Volume (mL)
density Product Density (g/mL)
declaredWeight Declared Net Weight on Label (g)
Worked Example
1
Given:
declaredWeight = 500
density = 1.03
fillVolume = 500
2
Apply the formula:
fillVolume * density
3
Result:515 g515 g

What is Fill Weight?

Fill weight is the mass of product filled into a container (pouch, bottle, tetra, tub). Accurate fill weight ensures:

  • Legal compliance: FSSAI requires net weight within ±3% of declared weight
  • Cost control: Overfill gives product away free
  • Consumer trust: Underfill is a legal violation

Formula

Fill Weight (g) = Fill Volume (mL) × Density (g/mL)

For milk and most fluid dairy products, density ≈ 1.028–1.032 g/mL

Overfill Cost Impact

Daily Overfill Loss (₹) = Overfill per pack (g) / 1000 × Packs/day × Product price (₹/kg)

Example: 5g overfill on 500mL pouches × 100,000 pouches/day × ₹40/kg = ₹20,000/day wasted

Legal Tolerance (FSSAI / Legal Metrology)

Declared WeightMaximum Negative Error
< 50g9%
50–100g4.5g
100–200g4.5%
200–300g9g
300–500g3%
500g–1kg15g
1kg–10kg1.5%

Tips for Accurate Fill Weight

  • Calibrate filling heads every shift with reference weights
  • Install check-weigher at exit of filling machine
  • Temperature affects density — adjust reference value seasonally
  • Verify declared weight on label matches actual fill specification