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Grocery budget calculator

Plan a monthly grocery budget for adults and children.

Your result

Complete the fields and calculate.

Calculation method and formula

(Adults + Children × Child budget share [%] ÷ 100) × Budget per adult per week × 52 ÷ 12

Understand the inputs

Adults
Minimum 0. Whole number.
Children
Minimum 0. Whole number.
Budget per adult per week
Use a measured value or your own assumption.
Child budget share
Unit: %. Minimum 0. Use a measured value or your own assumption.

Assumptions and limitations

The child budget is a chosen share of the adult budget. Monthly conversion uses 52 weeks divided by twelve; special diets and local prices are not prescribed.

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

Worked example

Illustrative values. Replace them with your own inputs for your calculation.

Adults
2
Children
2
Budget per adult per week
70
Child budget share
60 %
Example result970.67 per month

Weekly budget: 224.

Model revision: October 17, 2026 · How CleverCalc works

FAQ

Frequently asked questions

How does Grocery budget calculator work?+

(Adults + Children × Child budget share [%] ÷ 100) × Budget per adult per week × 52 ÷ 12. The child budget is a chosen share of the adult budget. Monthly conversion uses 52 weeks divided by twelve; special diets and local prices are not prescribed.

What assumptions should I consider for this result?+

The child budget is a chosen share of the adult budget. Monthly conversion uses 52 weeks divided by twelve; special diets and local prices are not prescribed. The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation.

How accurate is the result?+

The formula uses the specified units. Displayed numbers are rounded; whole packs, item counts and full time periods may also be rounded within the calculation. Prices, measurements and model assumptions determine how well the result represents your situation.

Is this calculator free?+

Yes. Calculations and PDF export work without an account or registration.

What happens to my inputs?+

Calculations run in your browser. Results are saved locally only when you add them to My results; favourites and history are also local. Shared links contain your values. The currency tool requests the selected currencies from its rate provider without sending your amount.

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