Total planned£0.00
Remaining£0.00
Cost entries0
Set a budget to see progress.
Add a real cost
Use current prices from the venue or provider. This calculator does not fetch prices or make bookings.
Build your own with AI
Copy this prompt into an AI coding assistant and ask it to explain each step:
Build me a mobile-friendly family day-out budgeter as one standalone HTML file. Let me name the outing, set a maximum budget, add costs with category, description, quantity and price, calculate totals and remaining money instantly, show when the plan is over budget, edit or delete entries, print the plan and save everything only in local browser storage. Do not fetch prices or process payments.
Privacy: your plan and costs stay in this browser’s local storage. Nothing is uploaded or booked. Clearing browser data may remove the plan.