Pick your margin, get your price.
Set a margin for each recipe and Slicewise rounds the selling price up to the next penny. Wedding cakes and cookies can carry different margins, and each recipe remembers its own.
Sell at £0.94 a slice Costs £0.37
Know what every slice costs.
Slicewise scales your recipes to any tin or batch size, then shows the cost per portion and the price to charge. It runs in your browser, with nothing to sign up for.
Free. No account. Your recipes stay on your device.
A bag of flour says £1.20. It doesn't say what a slice costs.
So you guess. You round to a number that feels fair, forget the butter went up, and bake a 23 cm cake from a 20 cm recipe by adding "a bit more of everything". Slicewise does the arithmetic you've been doing in your head, and does it properly.
Flour, 200 g of 1.5 kg£0.16
Butter, 200 g of 250 g£1.60
Eggs, 4 of 12£1.00
You pay for what you use, not the whole pack. That's how Slicewise counts it.
Tin scaling
Change the tin, not the maths.
A 23 cm tin isn't 15% bigger than a 20 cm one. It holds 32% more. Slicewise scales by the area of the tin's base, for round, square and rectangular tins, in centimetres or inches.
Scale factor 1.3225
Victoria sponge
| Ingredient | Amount | Cost |
|---|---|---|
| Plain flour | 265 g | £0.21 |
| Caster sugar | 265 g | £0.29 |
| Butter | 265 g | £2.12 |
| Eggs | 5.3 | £1.32 |
Batch cost £3.94
Per slice £0.37
Portions grow with the tin, so the cost of a slice stays put. The cake costs more.
Three steps, then it remembers.
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1 Stock the pantry.
Add each ingredient once with the pack you buy and what it costs: 1.5 kg of flour for £1.20. Change a price later and every recipe updates.
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2 Write the recipe once.
Pick ingredients from your pantry, set the amounts, the portions, and the tin it was written for. Grams, ounces, cups and spoons all work.
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3 Scale it, price it, shop for it.
Multiply it, set the number of portions, or pick a different tin. See the cost per portion and a selling price at your margin, then add it to this week's bakes.
Everything a small bake business needs to price properly. Nothing it doesn't.
One shopping list for the week.
Add this week's bakes, each at its own size. Slicewise adds them up, tells you how many packs to buy, and what the shop will cost.
This week: Victoria sponge ×1, ×2 and ×1.5
- Butter 900 g4 packs£8.00
- Caster sugar 900 g1 pack£1.10
- Eggs 182 packs£6.00
- Plain flour 900 g1 pack£1.20
Shop total £16.30
Kept on your device.
No account, no server, no tracking. Your recipes and prices live in this browser, and a backup file moves them to your next phone.
slicewise-backup-2026-11-02.json
Made for the kitchen, not the desk.
Big buttons for floury hands, a tab bar your thumb can reach, and a dark theme for the late bakes. Twelve units, from grams to cups, with no guessing between them.
This is the actual app. Have a go.
It opens on a sample kitchen: six recipes, priced and planned. Tap one, then change the batch size or the tin.
Recipes, This week, Pantry, Settings: four tabs, that's all
Everything you type is saved as you go
Your next order deserves a real price.
Put in one recipe tonight. You'll know what a slice costs before the oven's hot.
Open Slicewise