Percentage Calculator
Work out percentages, increase, decrease and the difference between two numbers instantly, with a chart.
ROAS Calculator
Calculate return on ad spend, ROI, cost per acquisition and your break-even ROAS, with a chart.
ROI Calculator
Calculate return on investment, net profit and the annualised return for any project.
VAT Calculator
Add VAT to an amount or extract it from a VAT-inclusive price at any rate, with a full breakdown.
Discount Calculator
Find the sale price and your saving, and work out stacked discounts correctly.