4 subcategories · 13 calculators
Home & DIY
Free home and DIY calculators for room measurement, garden planning, and household projects.
Subcategories
Measurement
Room and space measurement calculators.
Garden & Outdoor
Garden bed, planting, water feature, and outdoor space calculators.
Aquarium & Pool
Aquarium volume, fish tank size, and swimming pool capacity calculators.
Home Energy
Solar payback, heat pump running cost, and household water usage calculators.
Popular tools
Home & DIY / Measurement / Area
Acreage Calculator
Estimate lot size in acres, hectares, square feet, square yards, and square metres from common parcel shapes, known area totals, or split-lot sections.
Home & DIY / Aquarium & Pool
Aquarium Volume Calculator
Calculate true aquarium volume in litres, US gallons, and UK gallons after glass, bow-front shape, fill level, substrate, decor, and water-change adjustments.
Home & DIY / Home Energy
Carbon Footprint Calculator
Estimate annual household carbon emissions from home energy, driving, diet style.
Home & DIY / Home Energy
Heat Pump Cost Calculator
Compare annual heat-pump and gas-boiler running costs from heat demand, SCOP, fuel prices, and standing charges, with separated cost rows.
Home & DIY / Home Energy
Home Energy Bill Calculator
Estimate a whole-home electricity and gas bill from daily usage, unit rates, standing charges, billing days, and optional tax.
Home & DIY / Garden & Outdoor
Lawn Mowing Calculator
Estimate mowing time, pass count, and optional labour cost from lawn area, mower deck width, travel speed, overlap, and obstacle density.