Cake pricing calculator
Cost a recipe by the pack sizes you buy, add your hours, overhead and target margin, and get a price for the cake and a price per serving.
Calculators, no sign-up
Six calculators for the sums that come up around our templates. They run entirely in your browser: the numbers you type stay on your computer, nothing is uploaded, and none of them ask for an email address. Each one pairs with a spreadsheet that keeps the working.
Renovation contingency calculator
How much contingency to add to a renovation quote, based on the type of work, the age of the property and the risks you already know about.
Airbnb break-even occupancy calculator
The occupancy a short-term let needs before it covers its costs, plus monthly and annual net profit, net margin and a comparison against letting long term.
Gumroad fee calculator
What you actually keep on Gumroad, Payhip, Ko-fi, Lemon Squeezy and Etsy, with the 2026 fee chains applied in the right order and VAT handled properly.
Making Tax Digital spreadsheet checker
Whether MTD for Income Tax applies to you yet, when your quarterly updates fall due, and what HMRC expects a spreadsheet to record before you file through bridging software.
Executor checklist generator
Answer five questions and get a personalised, printable executor checklist with typical probate target dates against each task.
When a calculator is not enough
A calculator answers one question and forgets it when you close the tab. The spreadsheets keep your ingredients, your quotes, your bookings and your ledger, so the second answer takes seconds instead of minutes.