Meal Prep Portion Calculator
Calculate batch quantities and container counts for weekly meal prep.
About Meal Prep Portion Calculator
Container count depends on whole portions fitting rather than on total volume, so a container holding 1.8 portions effectively holds one. Rounding down before dividing avoids under-ordering. Food safety limits refrigerated prepped meals to about four days, so prepping beyond that requires freezing rather than simply more containers.
Formula
Meal Prep Portion
Total portions = meals per day × days × people; food weight = portions × portion size
- portion
- One serving, sized by weight rather than by container
- portions per container
- Whole portions that fit, since partial portions are impractical
Worked example
With the default values below, Meal Prep Portion Calculator returns Total Food to Prepare of 8.000. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Prepped meals per dayminimum 0
- 2
- Days coveredminimum 1
- 5
- Peopleminimum 1
- 2
- Grams per portionminimum 1 g
- 400 g
- Container capacityminimum 1 g
- 750 g
Results
- Total Food to Prepare
- 8.000 kg
- Total Portions
- 20
- Containers Required
- 20
- Portions per Container
- 1.88
- Food per Day
- 1.600 kg
Step by step
- 1Values used
- 2Meal Prep Portion
- 3Total Food to Prepare= 8.000 kg
- 4Total Portions= 20
- 5Containers Required= 20
- 6Portions per Container= 1.88
- 7Food per Day= 1.600 kg
Assumptions and limits
- The result is derived only from the 5 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 3 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
How is Meal Prep Portion calculated?
Total portions = meals per day × days × people; food weight = portions × portion size Container count depends on whole portions fitting rather than on total volume, so a container holding 1.8 portions effectively holds one. Rounding down before dividing avoids under-ordering.
Why does Meal Prep Portion matter?
Food safety limits refrigerated prepped meals to about four days, so prepping beyond that requires freezing rather than simply more containers.
What values do I need to enter?
This calculator takes 5 inputs: Prepped meals per day, Days covered, People, Grams per portion, Container capacity. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.