Questions, answered.
14,098 worked answers and focused input checks, with examples and links to the calculators they explain.
Learn the business essentials
Pricing & Profitability
Build a price from costs, distinguish margin from markup and test whether sales can cover overhead.
Cash Flow & Payments
Separate profit from cash, forecast payment timing and identify shortfalls before money is due.
Labour Cost & Capacity
Translate paid hours into delivery capacity and use realistic billable time when pricing work.
Materials & Inventory
Account for usable yield, pack sizes, lead times and the cash committed to stock.
Find guidance for your business.
HVAC service
Plan materials, travel and crew time before committing to a price.
Trades & constructionPlumbing service
Plan materials, travel and crew time before committing to a price.
Trades & constructionElectrical service
Plan materials, travel and crew time before committing to a price.
Trades & constructionRoofing
Plan materials, travel and crew time before committing to a price.
Trades & constructionSolar installation
Plan materials, travel and crew time before committing to a price.
Trades & constructionPool maintenance
Plan materials, travel and crew time before committing to a price.
Trades & constructionLandscaping
Plan materials, travel and crew time before committing to a price.
Trades & constructionLawn care
Plan materials, travel and crew time before committing to a price.
Trades & constructionTree service
Plan materials, travel and crew time before committing to a price.
Trades & constructionFencing
Plan materials, travel and crew time before committing to a price.
Trades & constructionDeck building
Plan materials, travel and crew time before committing to a price.
Trades & constructionWindow installation
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Trades & constructionInsulation installation
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Trades & constructionFlooring installation
Plan materials, travel and crew time before committing to a price.
Trades & constructionPainting contractor
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Trades & constructionRemodeling contractor
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Trades & constructionHandyman
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Trades & constructionCleaning service
Plan materials, travel and crew time before committing to a price.
Trades & constructionCommercial janitorial
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Trades & constructionPressure washing
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Trades & constructionJunk removal
Plan materials, travel and crew time before committing to a price.
Trades & constructionMoving service
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Trades & constructionAppliance repair
Plan materials, travel and crew time before committing to a price.
Trades & constructionGarage door service
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Trades & constructionLocksmith
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Trades & constructionPest control
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Trades & constructionChimney service
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Trades & constructionSeptic service
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Trades & constructionWell service
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Trades & constructionSecurity installation
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Trades & constructionRestoration service
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Trades & constructionGutter cleaning
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Trades & constructionSnow removal
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Trades & constructionIrrigation service
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Trades & constructionConcrete contractor
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Trades & constructionMasonry contractor
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Trades & constructionAsphalt contractor
Plan materials, travel and crew time before committing to a price.
Trades & constructionWelding shop
Plan materials, travel and crew time before committing to a price.
Trades & constructionCarpentry shop
Plan materials, travel and crew time before committing to a price.
Trades & constructionCabinet installation
Plan materials, travel and crew time before committing to a price.
Vehicle servicesAuto repair
Separate parts, technician time and bay availability for each repair order.
Vehicle servicesAuto detailing
Separate parts, technician time and bay availability for each repair order.
Vehicle servicesMobile mechanic
Separate parts, technician time and bay availability for each repair order.
Vehicle servicesTire shop
Separate parts, technician time and bay availability for each repair order.
Vehicle servicesBicycle repair
Separate parts, technician time and bay availability for each repair order.
Vehicle servicesBoat detailing
Separate parts, technician time and bay availability for each repair order.
Vehicle servicesFleet maintenance
Separate parts, technician time and bay availability for each repair order.
Transport & deliveryCourier service
Compare route time, vehicle cost, delivery density and collection timing.
Transport & deliveryLocal delivery
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Transport & deliveryFreight brokerage
Compare route time, vehicle cost, delivery density and collection timing.
Rental & facilitiesStorage operator
Account for turnaround, maintenance and available inventory before accepting another booking.
Rental & facilitiesEquipment rental
Account for turnaround, maintenance and available inventory before accepting another booking.
Rental & facilitiesTool rental
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Rental & facilitiesEvent rental
Account for turnaround, maintenance and available inventory before accepting another booking.
Professional servicesBookkeeping service
Account for delivery time, review work and when you expect to be paid for each engagement.
Professional servicesAccounting practice
Account for delivery time, review work and when you expect to be paid for each engagement.
Professional servicesLegal practice
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Professional servicesInsurance agency
Account for delivery time, review work and when you expect to be paid for each engagement.
Professional servicesRecruitment agency
Account for delivery time, review work and when you expect to be paid for each engagement.
Professional servicesConsulting firm
Account for delivery time, review work and when you expect to be paid for each engagement.
Digital & technologyIT support
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologyManaged IT service
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologyCybersecurity consulting
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologyWeb design
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologySoftware agency
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologySEO agency
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologyPaid media agency
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologyContent agency
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologyTranslation service
Include software licences, delivery time, revisions and ongoing support when costing a project.
Digital & technologyGraphic design
Include software licences, delivery time, revisions and ongoing support when costing a project.
Creative & eventsVideo production
Include preparation, delivery and post-production rather than shoot or event time alone.
Creative & eventsPhotography
Include preparation, delivery and post-production rather than shoot or event time alone.
Creative & eventsWedding photography
Include preparation, delivery and post-production rather than shoot or event time alone.
Creative & eventsEvent planning
Include preparation, delivery and post-production rather than shoot or event time alone.
Food & hospitalityCatering
Track purchased quantities, usable yield, labour and waste before deciding on a selling price.
Food & hospitalityBakery
Track purchased quantities, usable yield, labour and waste before deciding on a selling price.
Food & hospitalityCoffee shop
Track purchased quantities, usable yield, labour and waste before deciding on a selling price.
Food & hospitalityFood truck
Track purchased quantities, usable yield, labour and waste before deciding on a selling price.
Food & hospitalityRestaurant
Track purchased quantities, usable yield, labour and waste before deciding on a selling price.
Food & hospitalityMeal preparation
Track purchased quantities, usable yield, labour and waste before deciding on a selling price.
Appointments & careSalon
Allow time for preparation, the service itself and cleaning up before the next appointment.
Appointments & careBarbershop
Allow time for preparation, the service itself and cleaning up before the next appointment.
Appointments & careNail salon
Allow time for preparation, the service itself and cleaning up before the next appointment.
Appointments & careSpa
Allow time for preparation, the service itself and cleaning up before the next appointment.
Appointments & careMassage practice
Allow time for preparation, the service itself and cleaning up before the next appointment.
Teaching & fitnessPersonal training
Connect teaching time, preparation, attendance and room capacity to each lesson or class.
Teaching & fitnessFitness studio
Connect teaching time, preparation, attendance and room capacity to each lesson or class.
Teaching & fitnessYoga studio
Connect teaching time, preparation, attendance and room capacity to each lesson or class.
Teaching & fitnessDance school
Connect teaching time, preparation, attendance and room capacity to each lesson or class.
Teaching & fitnessTutoring service
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Teaching & fitnessLanguage school
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Teaching & fitnessMusic teaching
Connect teaching time, preparation, attendance and room capacity to each lesson or class.
Teaching & fitnessDriving school
Connect teaching time, preparation, attendance and room capacity to each lesson or class.
Pet servicesPet grooming
Include travel, preparation, cleaning and staffed capacity for each booking.
Pet servicesDog walking
Include travel, preparation, cleaning and staffed capacity for each booking.
Pet servicesPet boarding
Include travel, preparation, cleaning and staffed capacity for each booking.
Appointments & careVeterinary practice
Allow time for preparation, the service itself and cleaning up before the next appointment.
Appointments & careDental practice
Allow time for preparation, the service itself and cleaning up before the next appointment.
Appointments & careOptometry practice
Allow time for preparation, the service itself and cleaning up before the next appointment.
Professional servicesReal estate agency
Account for delivery time, review work and when you expect to be paid for each engagement.
More subjects to explore
What is the molality of one mole in half a kilogram of solvent?
One mole of dissolved substance in 0.5 kg of solvent has a molality of 2 mol/kg. Use the mass of solvent, not the mass of the entire solution, in the denom
home-measurementHow many concrete bags make half a cubic metre?
If a bag yields 0.012 m³ of mixed concrete, 0.5 m³ with a 10% allowance requires ceiling(0.5 × 1.10 / 0.012), or 46 bags. The yield must come from the prod
statisticsHow many ways can you choose three people from ten?
There are 120 ways to choose an unordered group of three people from ten. There are 720 ways to assign three distinct roles from ten people. The difference
pricing-profitabilityHow many extra sales do you need to recover a discount?
Work through a 10% price discount at a 40% contribution ratio and calculate the additional sales volume needed to preserve total contribution.
percentageAre two 20% discounts equal to 40%?
Two discounts apply to different bases. Start with a price of 100. A 20% discount leaves 80; a second 20% discount removes 16 and leaves 64. The total redu
materialsHow much energy heats two kilograms of water by ten degrees?
Using a constant specific heat of 4,184 J/(kg·K), heating 2 kg of water by 10 K requires 83,680 J, or 83.68 kJ. This estimates heat absorbed by the water,
unitsHow many feet are in a meter?
One meter is approximately 3.280839895 feet. One international foot is exactly 0.3048 meters.
unitsHow many liters are in a gallon?
One US liquid gallon is exactly 3.785411784 liters. One Imperial gallon is exactly 4.54609 liters.
home-measurementHow much paint do I need?
Divide paintable area multiplied by the number of coats by the paint’s coverage per liter.
home-measurementHow much concrete do I need?
For a rectangular slab, multiply length, width, and depth in meters. Add an allowance appropriate to the project.
percentageHow do you calculate a discount?
Multiply the original price by the discount percentage divided by 100, then subtract that saving from the price.
everyday-scienceHow do you calculate average speed?
Divide total distance by total elapsed time.
geometryHow do you calculate the area of a circle?
Square the radius and multiply by π: area = πr².
everyday-scienceHow do you calculate electrical power?
For DC circuits, multiply voltage by current: P = V × I.
percentageHow do you calculate percentage decrease?
Subtract the new value from the original, divide by the original, and multiply by 100.
percentageHow do you calculate percentage increase?
Subtract the original value from the new value, divide by the original value, and multiply by 100.
home-measurementHow do you calculate room area?
For a rectangular room, multiply its length by its width using the same unit.
percentageHow do you calculate a percentage?
Divide the part by the whole and multiply by 100. For example, 20 out of 80 is 25%.
geometryHow do you calculate triangle area?
Multiply the base by its perpendicular height and divide by two.
unitsHow do you convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5, then add 32.
unitsHow do you convert kilograms to pounds?
Divide kilograms by 0.45359237 to obtain pounds.
everyday-scienceHow do you estimate appliance energy use?
Multiply power in kilowatts by actual operating hours to estimate kilowatt-hours.
percentageWhat is the difference between percent and percentage points?
Percentage points measure the difference between two percentages. Percent change measures that difference relative to the starting percentage.
home-measurementHow long does thirty cubic metres take at twenty litres per minute?
Thirty cubic metres is 30,000 litres. At a steady 20 litres per minute, filling takes 1,500 minutes, or 25 hours. Subtract existing water volume if the poo
percentageWhat was the original price before a 20% increase?
If a price after a 20% increase is 120, the original price was 100: divide 120 by 1.20. Subtracting 20% of 120 produces 96 because it uses the new price as
interestHow much do twelve monthly deposits add at zero interest?
With 1,000 initially saved and twelve monthly deposits of 100 at zero interest, the balance is 2,200. This boundary case is a useful check before adding a
everyday-scienceWhat is the difference between watts and kilowatt-hours?
Watts measure power, the rate of energy use. Kilowatt-hours measure total energy used over time.
percentageWhat is 20% of 80?
20% of 80 is 16. Write 20% as 0.20, then multiply 0.20 by 80.
unitsWhy are area conversions different from length conversions?
Area scales in two dimensions, so the length conversion factor must be squared.
