Use the Handyy calculator hub to plan real UK home, garden, building, energy, household finance and property projects. Browse every calculator in one place, compare related tools and find the right starting point before ordering materials, setting out work or checking project costs.
This page is designed to be the main directory for all Handyy calculators. Instead of placing every calculator inside a large website menu, the tools are grouped here by project type so you can browse them more easily.
Use this hub when you want to plan a practical job, compare costs, estimate materials, check measurements, test affordability or explore related tools before moving forward.
These are strong starting points if you are browsing the calculator hub for the first time.
Check the correct slope and drop for patios, paving and slab runs.
Use calculatorExplore affordability, bills, lifestyle costs and household planning tools.
Browse finance toolsEstimate housing yield, development feasibility, density and planning risk.
Browse land toolsUse these tools for patios, paving, drainage, levels, concrete, fencing and decking projects where measurements and material quantities matter.
Work out the correct fall and total drop for patios, paving and slab runs.
Use a more advanced fall calculator for slope, ratio, distance and practical set-out checks.
Quickly calculate fall distances for simple slopes, levels and project set-out checks.
Calculate waste pipe and drainage gradients for UK, US and Australian-style checks.
Estimate patio slab laying costs, labour, materials and likely project pricing.
Work out concrete quantities for pads, bases, footings, posts and small pours.
Estimate how many bricks, blocks and mortar bags you may need for a garden wall, small wall or building project.
Estimate deck boards, joists, posts, screws, concrete, fascia and guide costs.
Estimate the weight of tools, materials, passengers and waste before loading your van or collecting supplies.
Calculate posts, rails, boards, gravel boards, nails and postcrete for fencing jobs.
Use these calculators for decorating, tiling, wallpapering, radiator sizing, TV mounting and finishing work around the home.
Estimate room painting costs, paint quantities and decorating budget ranges.
Work out tiles, boxes, adhesive, grout and fitted cost ranges for walls and floors.
Find how many wallpaper rolls you need from wall area and room measurements.
Work out a sensible TV mounting height before drilling or fitting a wall bracket.
Estimate the radiator output needed for a room based on size and conditions.
Find typical UK heights for worktops, sockets, switches, toilets, basins, radiators, door hinges, cupboard hinges, mirrors, TVs, outdoor taps and more.
Calculate skirting lengths, boards and wastage for room finishing projects.
Work out architrave lengths, boards and cutting allowances for doors and openings.
Use these tools for EV charging, solar panel planning, radiator sizing and electrical cable calculations.
Check realistic charging times for electric cars and vans using battery size and charger speed.
Check realistic charging times for plug-in hybrid, PHEV, SHS and DM-i cars using battery size and charger speed.
Estimate how many solar panels you may need for your home and electricity use.
Estimate radiator output for room-by-room heating upgrades and replacements.
Use a practical cable calculator for early electrical planning and cable size checks.
Use a more detailed BS 7671 aligned calculator for electrical cable planning checks.
These tools help with real-life affordability, household bills, lifestyle costs, moving home, emergency savings and major life events.
Browse the full household finance calculator hub for affordability and cost-of-living planning.
Estimate the realistic cost of family life, household bills and regular spending.
Enter any amount and see how it could fund your dream home, cars, holidays, investments, family future and generational wealth. Fun, interactive and surprisingly educational.
Estimate the cost of living alone, including regular bills and everyday spending.
Plan weekly student spending, loan shortfalls and when money may run out.
Check how much house may be affordable based on income, deposit and commitments.
Work out how much money is left after bills, essentials and regular spending.
Estimate the income needed to support your lifestyle, bills and future plans.
Estimate wedding costs and build a clearer budget before booking suppliers.
Work out a sensible emergency fund target based on your bills and household risk.
Compare buying and renting using realistic monthly and long-term assumptions.
Check whether your lifestyle fits your income after bills, debts and savings.
Compare today’s spending with what that money could become in the future.
Estimate funeral costs and understand the main choices that affect the final budget.
Estimate the real cost of moving house, including hidden and practical costs.
Check whether a specific house purchase feels affordable after real-life costs.
Use these property and land development calculators for early-stage site appraisal, housing yield, GDV, density, feasibility and planning risk checks.
Browse the full land development hub for site yield, GDV and feasibility tools.
Estimate potential housing numbers from land size, density and site constraints.
Calculate dwellings per hectare and test potential housing density on a site.
Estimate gross development value from units, selling prices and project assumptions.
Check early-stage development feasibility, costs, values and margin assumptions.
Estimate broad planning risk based on common constraints and development factors.
Explore whether a site or plot may support subdivision and future development.
Simple support tools that do not sit inside one trade category but are still useful for planning, timing and quick checks.
Use a simple countdown timer for jobs, tasks, breaks, reminders and time checks.
Keeping every calculator on one organised hub page makes it easier to browse related tools without making the main website menu too long or confusing.
No. The main menu should stay simple. It is better to link to this calculator hub and a small number of major categories, rather than listing every calculator in the dropdown.
No. The calculators are designed for planning guidance. Real-world results can change because of site conditions, access, labour rates, product choice, regulations and individual circumstances.
Start with the category that matches your project. For example, use Outdoor & Groundworks for patios and drainage, Indoor & Finishing for decorating and tiling, Energy and Electrical for utilities, and Household Finance for affordability checks.
Yes. Many projects overlap. For example, a patio project may use the Patio Fall Calculator, Slab Laying Cost Calculator and Concrete Volume Calculator together.
This hub is designed to keep the website menu clean while still giving visitors access to every calculator. Choose a category, open the calculator that fits your project, and use related tools if you need a wider planning picture.
