Small numbers. Big clarity.
Life has enough
unknowns.
Do the maths.
From splitting the bill to pricing your next project. 26 simple calculators for everyday life and small business.
No account required.
Find your next answer
A little clarity goes a long way.
Percentage
Find a percentage of a number, turn a part into a percentage or work backwards to the whole.
Open calculatorPercentage change
Compare an old and new value to find the percentage increase or decrease.
Open calculatorDiscount
See the final sale price and exactly how much a percentage discount saves.
Open calculatorMargin & markup
Understand gross profit, compare margin with markup or calculate a target selling price.
Open calculatorBreak-even
Find how many units you need to sell to cover your fixed and variable costs.
Open calculatorProject price
Turn an hourly rate, estimated working time and expenses into a clear project quote.
Open calculatorUnit price comparison
Compare two pack sizes on price per kilogram, litre or item.
Open calculatorBill splitter and tip
Split a bill equally or by relative shares, with optional tip and exact penny allocation.
Open calculatorHours and time duration
Find working hours between clock times, subtract breaks and handle overnight shifts.
Open calculatorDate difference
Count calendar days and whole weeks between dates, with optional inclusive counting.
Open calculatorRecipe scaler
Scale several ingredient quantities together for a different number of servings.
Open calculatorFuel trip cost
Estimate journey fuel use and cost from your distance, consumption and price per litre.
Open calculatorElectricity running cost
Estimate appliance energy use and cost using your own electricity rate.
Open calculatorSavings goal
Find how many weekly or monthly contributions are needed to reach a target.
Open calculatorPaint quantity
Estimate litres of paint from wall area, openings, coats and stated coverage.
Open calculatorLength area weight and volume converter
Convert compatible metric and imperial units with explicit unit definitions.
Open calculatorProfit after fees
See profit after product costs, shipping, percentage fees, fixed fees and other entered costs.
Open calculatorDiscount impact on profit
Compare profit and margin before and after a sale, plus sales needed to preserve contribution.
Open calculatorTarget profit sales
Find the whole-unit sales needed to cover fixed costs and reach a chosen profit target.
Open calculatorBillable hours and utilisation
Compare available time with billable time and estimate revenue at your entered rate.
Open calculatorCommission
Estimate a flat sales commission and an optional fixed component for the same period.
Open calculatorHourly and day rate converter
Convert rates into daily, weekly and annual gross amounts using your working schedule.
Open calculatorProduct pricing worksheet
Build a per-item cost from materials, labour, packaging and overhead, then apply a target margin.
Open calculatorOverhead allocation
Spread entered overhead across units produced or billable hours in a consistent period.
Open calculatorRevenue growth and order value
Compare revenue, order volume and average order value between two business periods.
Open calculatorStock reorder point
Estimate when to reorder from daily demand, supplier lead time and your safety stock.
Open calculatorNo matching calculators
Try “percentage”, “discount” or “project”.
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