Free browser-based calculators for marketing and design decisions. No sign-up, no data leaves your device.
Calculate your Return on Ad Spend for any campaign
Calculate width, height, and aspect ratios for any medium
Calculate gross margin, net margin, and markup percentage
Find sale prices, savings, and discount percentages
Find your break-even point in units and revenue
Measure your website or campaign conversion rate
Check statistical significance for your A/B tests
Calculate return on investment, profit, and payback period
Calculate percentages, changes, and differences instantly
Calculate customer lifetime value for your business