Batch Scale Up Quantity Calculator

Work out batch scale up quantity instantly with clear inputs, formula shown and shareable results.

About Batch Scale Up Quantity Calculator

Ingredient quantities scale linearly with batch size, so the scale factor is target divided by pilot batch size. A process loss allowance covers material retained in vessels, pipes and filters, which is proportionally much larger at pilot scale but never zero at production scale.

Formula

Scale-up

Scaled quantity = pilot quantity x (target batch / pilot batch) x (1 + loss allowance)

Worked example

With the default values below, Batch Scale Up Quantity Calculator returns Scaled Ingredient Quantity of 12,875.000. Change any input above and every figure here is recalculated in your browser.

Inputs used

Pilot Batch Sizeminimum 0 kg: 2 kg
Target Batch Sizeminimum 0 kg: 500 kg
Ingredient Quantity In Pilotminimum 0 g: 50 g
Process Loss Allowanceaccepts 0–30 %: 3 %

Results

Scaled Ingredient Quantity: 12,875.000
Scale Factor: 250.0000
Quantity Before Loss Allowance: 12,500.000
Percentage In Formula: 2.50000%

Step by step

1Values used
2Scale-up
3Scaled Ingredient Quantity= 12,875.000
4Scale Factor= 250.0000
5Quantity Before Loss Allowance= 12,500.000
6Percentage In Formula= 2.50000

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 5 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why do scaled-up batches often behave differently?

Mixing, heat transfer and shear do not scale linearly with volume. Emulsion droplet size, hydration of gums and cooling rate all change, so a linear ingredient scale-up still needs process re-optimisation.

What should be held constant when scaling?

Where possible, tip speed rather than impeller rpm, specific energy input per kilogram, and heating and cooling rates. Geometric similarity of the vessel helps considerably.