🏠 Household
Household
55 calculators
- Air Purifier Room Size Calculator Find the CADR an air purifier needs for your room and how large a purifier that rating covers.
- Appliance Wattage Calculator Find the typical wattage of a household appliance and what it costs to run.
- Battery Life Calculator Work out how long a battery will last given its capacity and the current drawn by the device.
- Bed Size Calculator Compare mattress sizes in inches and centimetres and see how much floor space each one leaves in your room.
- Candle Burn Time Calculator Estimate how long a candle will burn based on its weight, wax type and wick count.
- Ceiling Fan Size Calculator Pick the right ceiling fan blade span for a room based on its floor area.
- Cord of Wood Calculator Convert a stack of firewood into cords and face cords, and estimate what it will cost.
- Cost of Baby Calculator Estimate the first-year cost of a baby from diapers, feeding, childcare and one-off purchases.
- Curtain Length Calculator Find the exact curtain drop for sill, apron, floor and puddle length hangings.
- Curtain Size Calculator Calculate the panel width and length for curtains, including the fullness needed for a gathered look.
- Data Usage Calculator Estimate monthly internet data from streaming, gaming, browsing and downloads.
- Date Calculator Add or subtract days, weeks, months and years from any date.
- Dehumidifier Size Calculator Choose the right pint capacity for a dehumidifier based on room size and how damp it is.
- Diaper Calculator Work out how many diapers a baby needs by age and what the habit costs.
- Dilution Ratio Calculator Work out how much concentrate and water you need for any dilution ratio and final volume.
- Drip Faucet Calculator See how much water a dripping tap wastes and what it costs you over a year.
- Electricity Bill Calculator Estimate what an appliance costs to run per day, month and year from its wattage, hours of use and your electricity rate.
- Electricity Cost Calculator Calculate what any appliance costs to run per day, month and year.
- Firewood Calculator Estimate how many cords of firewood you will burn in a heating season.
- Flooring Calculator Calculate the floor area, waste allowance and number of boxes or cartons of flooring you need.
- Furniture Spacing Calculator Find the recommended gap between pieces of furniture for seating, coffee tables and traffic lanes.
- Generator Wattage Calculator Add up running watts and starting watts for the appliances you want to back up and size a generator.
- Grout Calculator Calculate how much grout a tiling job needs from the tile size, joint width and joint depth.
- Hair Growth Calculator See how long your hair will be after a given time, or how long it takes to reach a target length.
- Hammock Hang Calculator Find the right hanging height and distance for a comfortable 30-degree hammock hang.
- Hot Tub Chemical Calculator Calculate sanitizer and pH doses for a hot tub based on its water volume.
- Hot Tub Cost Calculator Estimate what it costs to heat and run a hot tub over a month and a year.
- Ice Melt Calculator Calculate how much ice melt you need for a driveway or walkway at a given temperature.
- Insulation Calculator Calculate how much insulation material you need for an attic, wall or floor build-up.
- LED Savings Calculator Compare the running cost of incandescent or halogen bulbs with LED replacements and see the annual saving.
- Light Bulb Savings Calculator See how much you save each year by replacing a bulb with a more efficient one, including the payback period.
- Lighting Calculator Calculate how many lumens and bulbs a room needs based on its size and how bright the space should be.
- Lumens to Watts Converter Convert a light output in lumens to the wattage you need for each bulb technology.
- Patio Heater BTU Calculator Work out how many BTUs you need to heat an outdoor patio area.
- Pool Chemical Calculator Calculate how much chlorine, pH adjuster or alkalinity increaser your pool needs.
- Pool Salt Calculator Find how many pounds of salt a saltwater pool needs to reach its target salinity.
- Pool Volume Calculator Calculate the water volume of a rectangular, round or oval pool in gallons and litres.
- Quit Smoking Savings Calculator See how much money you save by quitting smoking and how much life expectancy is regained.
- Room Layout Calculator Check the clearances in a room and find the largest furniture footprint that still leaves comfortable walkways.
- Rug Size Calculator Find the right rug dimensions for a living room, dining room or bedroom based on the furniture layout.
- Shelving Weight Capacity Calculator Estimate the safe load a shelf can carry from its span, thickness and material.
- Shower Cost Calculator Find what each shower costs in water and energy, and what the habit adds up to over a year.
- Smoke Detector Placement Calculator Work out how many smoke detectors a home needs and where they should go.
- Snow Removal Cost Calculator Estimate the cost of snow removal for a driveway or lot by area and snowfall depth.
- Sunscreen Calculator Calculate how much sunscreen to apply for your body size and how long your protection lasts.
- Tattoo Size Calculator Convert a tattoo size into area, session time and a price estimate.
- Tile Calculator Work out how many tiles you need for a floor or wall, including the cut allowance.
- Tile Grout Calculator Find the volume of grout needed for a tiled area from the joint dimensions and tile size.
- Toilet Paper Calculator Calculate how many rolls of toilet paper a household uses and what it costs per year.
- TV Mounting Height Calculator Find the right height to mount a TV so the centre of the screen sits at a comfortable viewing angle.
- TV Size Calculator Work out the ideal screen size for your seating distance using THX and SMPTE viewing-angle guidelines.
- Wallpaper Roll Calculator Estimate how many rolls of wallpaper a room needs, accounting for pattern repeat and doors and windows.
- Water Footprint Calculator Estimate how much water your daily habits use and where the biggest savings are.
- Water Usage Calculator Estimate your household water use from showers, toilets, laundry and outdoor watering.
- Window Blind Size Calculator Calculate the correct blind width and drop for inside or outside mounting.
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