Home, Garden & DIY
218 tools · page 3 of 4
- Raised Bed Soil Calculator Calculate how much soil you need to fill a raised garden bed from its length, width, and depth.
- Solar System Size Calculator Estimate the solar PV system size in kW from your monthly electricity usage, local peak sun hours, and a system derate factor.
- Cleaning Solution Dilution Calculator Works out how much concentrate and water to mix for a given bottle size and dilution ratio.
- Concrete Column Calculator Estimates the concrete volume needed for round or square columns in cubic metres, cubic yards, and 60-lb bags.
- Flagstone Patio Calculator Estimates the tons of flagstone needed for a patio from the area and stone thickness, where 1 ton covers about 120 sq ft at 1.5 inches.
- Ice & Water Shield Calculator Estimates how many rolls of ice and water shield underlayment you need to cover your roof eaves, based on total eave length and number of courses.
- Sump Pump Sizing Calculator Estimates the required sump pump capacity in gallons per hour from your measured water inflow rate and a chosen safety factor.
- Alligation Calculator Uses the alligation method to find the parts ratio and volumes when blending two solutions of different strengths to reach a target concentration.
- Curtain Width Calculator Calculate the curtain fabric width you need from your window width, fullness ratio, and number of panels.
- Cinder Block Wall Calculator Estimates the number of cinder blocks, mortar bags, and rebar length needed to build a concrete block wall.
- Worm Castings Calculator Estimates how many pounds (and kilograms) of worm castings you need for a garden bed from its area and your chosen application rate, plus the number of 40 lb bags.
- Daily Water Use Cost Calculator Estimates how much your daily water consumption costs over a billing period from your gallons used and the price per 1,000 gallons.
- Roof Truss Count Calculator Estimate how many roof trusses you need based on the roof length and on-center truss spacing.
- Ceiling Paint Calculator Estimate how much paint you need for a ceiling from its area, number of coats, and paint coverage.
- Soil Amendment Calculator Calculates the cubic yards of compost or soil amendment needed to cover an area at a given depth.
- Spray Paint Coverage Calculator Estimate how many spray paint cans you need for an area, number of coats, and coverage per can.
- Rain Barrel Water Collection Calculator Estimate how much rainwater you can harvest from a roof based on its area and rainfall.
- Vinyl Plank Flooring Calculator Calculate how many boxes of vinyl plank flooring you need from the room dimensions, a waste allowance, and the coverage per box.
- Fertilizer PPM Calculator Calculates how much fertilizer to dissolve in water to reach a target nutrient concentration in ppm.
- Sulfur Application Calculator Estimates how much elemental sulfur (in pounds) you need to lower your soil pH to a target level, based on soil texture and area.
- Water Bill Calculator Estimate your water bill from gallons used, the rate per 1,000 gallons, and a fixed base service charge.
- Grass Plug Calculator Estimates how many grass plugs you need to cover a lawn based on the area and plug spacing, using plugs = area ÷ (spacing/12)².
- Handrail Length Calculator Calculate the length of a stair handrail along the slope plus top and bottom extensions, with the slope angle.
- Greenhouse Heating Calculator Sizes the heater output needed to keep a greenhouse at your target temperature, using surface area × temperature difference × the 1.1 glazing heat-loss factor.
- Chair Rail Calculator Calculate the length of chair rail (or other trim) needed for a room from its length and width, subtracting door and window openings. Plan your moulding purchase precisely.
- Rug Size Calculator Calculate the recommended rug size for a room based on its dimensions and the floor border you want to leave.
- Lawn Fertilizer Calculator Calculate fertilizer needed for a lawn area.
- Sofa Size Calculator Calculate the recommended sofa length for a wall by leaving clearance on each side.
- Trench Volume Calculator Calculate the excavation volume of a trench from its length, width, and depth, in cubic metres, cubic yards, and cubic feet.
- Rain Chain Length Calculator Calculates how much rain chain you need based on the gutter-to-ground drop and number of chains, adding 5% slack for hanging.
- Days to Harvest Calculator Calculates the expected harvest date by adding a crop's days-to-maturity to the planting date, and shows the growing period in weeks and months.
- Fence Stain Calculator Estimates how much stain you need to cover both sides of a fence, accounting for coats and coverage.
- Garden Watering Schedule Calculator Estimates how many gallons of water your garden needs this week based on plant type, area, and recent rainfall.
- Hydroponic Nutrient Calculator Calculates how much of each two-part nutrient to add to a hydroponic reservoir based on volume and dose rate.
- Pond Liner Size Calculator Calculate the pond liner dimensions you need from the pond length, width, depth and an overlap allowance on each side.
- Pool Chlorine Dosage Calculator Calculates how much chlorine product is needed to raise a pool's free chlorine from its current level to a target ppm, based on volume and product strength.
- Solar Cooker Savings Calculator Estimates the fuel and cost saved per year by cooking with a solar cooker instead of conventional fuel.
- Air Conditioner Sizing Calculator Find the BTU capacity your air conditioner needs for a room's size, sun exposure and occupancy.
- Bark Chip Coverage Calculator Work out how many bags of bark chips you need to cover a bed at a chosen depth.
- Board Feet Cost Calculator Calculate board feet and total lumber cost from board dimensions, quantity and price.
- Brick Mortar Calculator Estimates how many 80 lb bags of mortar mix you need for a given number of bricks (up to 37 bricks per bag).
- Carpet Calculator Carpet area for a rectangular room cut from a fixed-width roll, with linear metres to buy and cutting waste.
- Cavity Wall Insulation Calculator Estimate the fill volume, install cost, energy saved and payback of insulating a cavity wall.
- Chimney Liner Length Calculator Calculate the flexible chimney liner length to order and its total cost from the chimney height.
- Compost Bin Volume Calculator Work out the volume of a compost bin and how much material it can hold.
- Concrete Slab Rebar Calculator Work out how many rebar bars and how much tie wire a concrete slab needs at your chosen spacing.
- Coving Length Calculator Work out the coving or cornice length and the number of packs needed for a room.
- Damp Proof Course Calculator Work out the DPC length, number of rolls and cost needed for a wall perimeter, including laps.
- Deck Stain Calculator Estimates the gallons and liters of deck stain for an area at a given coverage rate.
- Drainage Fall Gradient Calculator Calculate the fall needed over a drain run for a required 1-in-X gradient.
- Extractor Fan Sizing Calculator Find the extractor fan airflow in m³/h a room needs from its volume and air-change rate.
- Fence Panel Count Calculator Work out how many fence panels, posts and gravel boards a fence run needs.
- Fence Post Spacing Calculator Work out how many fence posts you need and the exact even spacing for a fence run.
- Fence Rail Calculator Calculates the number of fence posts, sections, and rails required for a fence of a given length, post spacing, and rails per section.
- Firewood Cord Value Calculator Find the price per cord and the heat value of a firewood delivery from the stacked size and price.
- Generator Fuel Consumption Calculator Estimate the fuel a generator burns over a run time at a given load, from its full-load consumption.
- Grass Seed Quantity Calculator Work out how much grass seed your lawn needs at a given sowing rate.
- Gravel Driveway Tonnage Calculator Calculates the tonnes of gravel and the number of bulk bags needed to cover a driveway at your chosen depth.
- Guttering Length Calculator Calculates how many gutter lengths, joint unions, brackets and downpipes you need along a roof edge, plus the total downpipe run.
- Heat Loss Calculator Calculates building fabric heat loss in watts from the envelope U-value, surface area and indoor-outdoor temperature difference.