Available
Margin Calculator
Calculate trade margin, markup and gross profit from purchase and selling price, or determine the selling price from a target margin or markup – net, with calculation steps.
Everyday Mathematics
Calculators and tools in the Everyday Mathematics section.
Practical Calculations
Calculators in the Practical Calculations topic.
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Available
Price Comparison Calculator
Compare offers fairly: calculate the unit price per unit (kg, liter, piece), find the cheapest offer and see how much more the others cost in percent.
Available
Recipe Converter
Convert recipe amounts to a different number of servings or a free factor – all ingredients are scaled proportionally, with calculation steps.
Available
Tip Calculator
Calculate a tip as a percentage or round the bill up to an even amount – including total, amount per person and effective percentage.