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16 free calculators for kitchen operators

Calculators for people who actually run kitchens

Cost a plate, price a menu, size the extraction, work out what the fryer is costing you. No sign-up, no email gate — every number is worked out in your browser and nothing you type leaves it.

Costing

What your food actually costs you

Pricing & menu

What to charge, and what to push

  • Menu price recommenderSoonTurn a plate cost and a target GP into a price that ends properly
  • GP / margin calculatorSoonGross profit, margin and markup — converted correctly, both ways
  • Menu engineering matrixSoonSort dishes into stars, ploughhorses, puzzles and dogs

Equipment & kitchen

Speccing and running the kit

  • Equipment running costSoonWhat a fryer, oven or fridge costs you per hour, day and year
  • Kitchen equipment sizingSoonSize the kit to your covers, not to a guess
  • Ventilation / extraction sizingSoonExtraction airflow for your canopy and cooking line

Compliance

Staying the right side of the rules

  • BPA-ban compliance checkerSoonCheck your food-contact kit against the 2026 BPA ban

Finance

The numbers behind the business

  • Prime cost calculatorSoonFood plus labour as a share of sales — the number that kills sites
  • Break-even calculatorSoonThe covers or takings you need before you make a penny
  • Labour cost / rotaSoonRota hours to a labour cost %, with NI and holiday included
  • P&L builderSoonA one-page profit and loss for a single site
  • Restaurant valuationSoonA ballpark multiple-of-EBITDA valuation for a site