Plan DIY projects, work out garden materials, estimate energy bills and keep your household budget on track — with simple calculators built for the UK.
Choose a category or jump straight into a calculator.
Estimate how much paint you need for your walls.
More practical tools for your next project.
MyProjectCosts helps you estimate quantities and costs before you start a project. Enter your measurements, prices or usage figures to get a result you can use for planning. Always check product packaging, supplier specifications and your actual tariff before buying materials or making a financial decision.
Yes. The calculators are free to use and do not require an account or payment.
The calculations run in your browser. This page does not send the numbers you enter to a MyProjectCosts server or store them in a database. If advertising or analytics is added, those third-party services may process technical information subject to the relevant privacy and consent requirements.
Cuts, breakages, awkward room shapes and future repairs can mean you need more material than the exact measured area. The recommended allowance varies by material and project, so adjust it to your situation and supplier guidance.
No. Enter the unit rate and standing charge from your own bill or tariff. Actual bills can also depend on meter conversion factors, discounts, taxes, time-of-use rates and changes in usage.
No. They are planning estimates only. Check measurements, supplier specifications, building requirements and costs with an appropriate professional when necessary.
Plan your projects, estimate materials and understand everyday household costs with our free calculators.
Work out how many wallpaper rolls you need for your room. Enter your wall measurements and roll dimensions to estimate quantities and reduce waste.
Calculate how much laminate, vinyl or other flooring you need. Enter your room dimensions to estimate floor coverage and material quantities.
Estimate how many tiles are needed for floors and walls. Calculate coverage using your surface measurements and tile dimensions.
Estimate the volume of concrete required for your DIY project. Useful for foundations, bases, paths and other home improvements.
Calculate how much gravel or garden mulch you need. Estimate the volume required for your chosen area and depth.
Estimate the amount of grass seed or turf needed for your garden. Enter your lawn measurements to calculate the area to cover.
Work out how many fence panels you need for your garden. Use your fence length and panel width to estimate quantities.
Estimate electricity costs using your energy consumption and unit rate. Understand how much your electricity usage could cost.
Estimate household gas costs using your consumption and tariff information. Get a clearer picture of your energy spending.
Find out how much household appliances cost to run. Estimate electricity costs using appliance wattage, usage time and your electricity rate.
Build a clearer picture of your household finances. Compare monthly income against bills, regular expenses and everyday spending.
Plan the cost of your next home improvement project. Add estimated expenses to understand your overall project budget.
Compare the cost of products using their price per unit. Make it easier to identify better value when shopping.
Calculate percentage increases and decreases between two values. Useful for comparing price changes, savings and household costs.
Helping you plan projects and understand costs with confidence.
MyProjectCosts helps people across the UK plan home improvements, DIY projects and everyday household spending with simple, free online calculators.
Whether you're decorating a room, laying new flooring, improving your garden or trying to understand household energy costs, our calculators help you estimate quantities, compare costs and plan ahead.
Our aim is simple: to make everyday project planning easier, help reduce waste and give people a clearer idea of what things really cost.
All our calculators are free to use, with no registration required.
Plan it. Price it. Get it right.