Hospitality calculators that pay for themselves in a shift
Free tools for GP, food cost, drink costing, VAT, menu pricing and day-to-day trade decisions — for restaurant, bar, pub, café and street food operators.
Restaurants · Bars · Pubs · Cafés · Street food · Event venues
- Calculators
- 20+
- Cost
- £0
- Sign-up
- None
Dish cost £4.20 · sells for £14 =
All calculators
Search or browse the full library.
VAT Calculator
Add or remove UK VAT from any amount.
Reverse VAT Calculator
Work out the net amount from a VAT-inclusive total.
Percentage Calculator
Calculate percentages, increases and decreases.
Markup Calculator
Calculate selling price from cost and markup %.
Profit Margin Calculator
Work out gross profit and margin %.
Food Cost Calculator
Food cost %, GP % and profit per dish.
GP Calculator
Gross profit, GP % and markup % in one place.
Cocktail Margin Calculator
Pour cost, profit per serve and margin % for multi-spirit cocktails.
Event Profit Calculator
Revenue, costs, net profit and profit % for events.
Break-Even Calculator
How many units you need to sell to break even.
No Show Cost Calculator
Monthly and annual revenue lost to no-shows.
Recipe Yield & Portion Cost Calculator
Work out true portion cost after prep and cooking loss.
Menu Engineering Calculator
Classify dishes as Star, Ploughhorse, Puzzle or Dog.
Labour Cost per Cover Calculator
Labour % of sales, per cover and per trading hour.
Food Waste & Stock Loss Calculator
Waste %, projected annual cost and savings at your target.
Delivery Platform Profit Calculator
True profit per order after Deliveroo, Uber Eats and Just Eat fees.
Private Hire & Event Profit Calculator
Full P&L for weddings, corporate hire and private events.
Covers & Revenue Forecast Calculator
Forecast covers, sales and missed revenue from capacity and average spend.
Actual vs Theoretical GP Calculator
Compare actual and theoretical GP to uncover stock loss, waste and margin leakage.
Discount & Promotion Profit Calculator
See the real profit impact of discounts, offers and promotional campaigns.
Tools by category
Pick a category or jump straight to the calculator you need.
Costing
Recipe yield, food cost, cocktail costing and portion pricing.
Menu performance
Menu engineering, GP, margin and pricing decisions.
Staffing
Labour cost per cover, wage %, and rota profitability.
Operations
Waste, break-even, no-shows, private hire and event profitability.
Revenue channels
Delivery platforms, VAT, markup and channel margin.
Built for the people running UK hospitality
Every calculator is designed around real trade decisions — pricing a dish, costing a cocktail, checking a GP, forecasting an event.
Operators & founders
Sanity-check pricing, margins and viability before a shift, a new site or a menu launch.
General managers
Spot GP drift, price cocktails properly and forecast events without waiting on the accountant.
Chefs & bar managers
Recipe cost every dish and drink, then price it for the GP target the venue actually needs.
Accountants & consultants
Quick, defensible UK VAT and margin numbers to share with hospitality clients.
Why operators use Dumb Bambi
Instant answers
Every calculator updates as you type — perfect for a quick check on the pass or behind the bar.
UK-native maths
VAT rates, GP conventions and pounds sterling. Built the way UK hospitality operators actually work.
Save & share
Email results to yourself, print a summary or forward it to your accountant in one click.
Hospitality calculators, answered
Quick answers to what operators, managers and chefs ask us most.
Are the calculators really free?+
Yes. Every calculator on Dumb Bambi is free, works instantly and never asks you to sign up before showing results.
Who are these tools built for?+
UK hospitality operators — restaurants, bars, pubs, cafés, street food and event venues — plus the accountants and consultants who work with them.
What GP % should hospitality aim for?+
Food GP typically sits at 65–72%. Wet GP targets are around 70–75% on draught, 75–80% on wine and 80%+ on spirits and cocktails.
Can I save or share my results?+
Every calculator has an ‘Email me these results’ and a printable summary option so you can share numbers with your team or accountant.
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