Calculate the cost. Work through the household problem.
Use a calculator for prices and budgets, or find a step-by-step guide for cleaning, laundry and home care. No account is needed to calculate.
Most used tools
- Which one is cheaper?Compare two products including coupons, delivery and points.
- Discount and coupon price calculatorFinal price after a percentage discount and a coupon.
- Profit margin calculatorProfit and margin after fees, shipping and packaging.
- Price per 100 g calculatorTurn any price and pack weight into a price per 100 g and per kg.
- Buy one get one free calculatorThe real discount rate and per-item price of a BOGOF offer.
- Target selling price calculatorThe selling price that delivers your target margin.
- Floor area converterConvert floor area between m², sq ft and pyeong.
- Break-even point calculatorBreak-even units and revenue from fixed costs and contribution margin.
How do I fix this?
Step-by-step fixes for everyday household problems.
- StorageStoring Seasonal Clothes So They Come Out Fresh Next YearAlmost every storage failure traces back to two things: putting clothes away unwashed, or putting them away not fully dry. Fix those and most problems disappear.
- Kitchen careHow to Clean a Burnt Pot Without Wrecking the SurfaceBurnt residue comes off by loosening, not by force. Simmer water with baking soda for ten minutes, then let it sit and cool — most of it will push off with a wooden spoon.
- LaundryWhy Your Towels Smell Even After Washing — And How to Fix ItThe smell comes from bacteria feeding on detergent and softener residue trapped in the fibers. Adding more detergent makes it worse. Soak in hot water with oxygen bleach, wash hot, and dry immediately.
- LaundryClothes Still Smell After Washing? Find Out Which of Three Things Is WrongThere are only three realistic causes: the machine itself is contaminated, you are using more detergent than can rinse out, or the clothes are taking too long to dry. Run one diagnostic sniff test to identify which, then treat that one. Adding stronger-scented detergent fixes none of them.
Browse by category
- Shopping & unit price6Work out which product is actually cheaper once size, coupons and multi-buy offers are taken into account.
- Selling & pricing3Price your products with cost, fees and shipping included, and see what actually remains as profit.
- Home & moving1Floor area conversion, moving budgets and material quantities for your home.
Latest guides
- What the break-even point really tells youThe break-even point is fixed costs divided by contribution margin. Here is how to split your costs correctly and how to bring the number down.
- Margin, cost ratio and markup explainedMargin is measured against revenue, markup against cost. Here is why the same deal produces different numbers and how to price without confusing them.
- Why the big pack is not always cheaperBulk packs have a lower unit price, but only if you finish them. Here is how to adjust for waste and find the usage rate where bulk starts to pay.
- The easiest way to compare unit pricesPack sizes differ, so shelf prices cannot be compared directly. Here is how to convert any price to a price per 100 g, 100 ml or item.
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Stated basis and sources
Where rules or rates matter, the page shows the date the figures were checked and what they are based on.