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Plate Method Portions Calculator

Work out plate method portions instantly with clear inputs, formula shown and shareable results.

About Plate Method Portions Calculator

Applies the plate method split of half vegetables, one quarter protein and one quarter starch, converted into volumes for the plate size and food depth.

Formula

Plate method

Plate area = pi x (diameter/2)^2; volume = area x food depth; the split is 50% vegetables, 25% protein and 25% starch

Worked example

With the default values below, Plate Method Portions Calculator returns Vegetable section volume of 572.6. Change any input above and every figure here is recalculated in your browser.

Inputs used

Plate diameteraccepts 15–40 cm
27 cm
Average food depthaccepts 0.5–8 cm
2 cm

Results

Vegetable section volume
572.6 mL
Protein section volume
286.3 mL
Starch section volume
286.3 mL
Total plate volume
1,145.1 mL

Step by step

  1. 1Values used
  2. 2Plate method
  3. 3Vegetable section volume= 572.6 mL
  4. 4Protein section volume= 286.3 mL
  5. 5Starch section volume= 286.3 mL
  6. 6Total plate volume= 1,145.1 mL

Assumptions and limits

  • The result is derived only from the 2 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 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

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

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Does plate size matter?

Yes. Going from a 23 cm to a 30 cm plate raises the same proportional split by around 70% in volume.

Where do fruit and dairy fit?

The diabetes plate method places them alongside the plate rather than within the three sections.

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