Finance Calculators
Free online finance calculators for markup, margin, ROAS, payback period, and investment analysis. Every tool uses standard financial formulas and shows the exact math behind each result.
Markup Calculator
Calculate markup percentage from cost and selling price. See profit, gross margin, and the price multiplier for any product or service.
Margin Calculator
Calculate gross margin from cost and revenue. Understand the difference between markup and margin with conversion formulas.
ROAS Calculator
Calculate Return on Ad Spend from ad revenue and ad cost. Evaluate advertising campaign profitability and ROI.
Payback Period Calculator
Calculate how long it takes to recoup an investment. Simple and discounted payback period with cash flow analysis.
Sharpe Ratio Calculator
Calculate risk-adjusted returns using the Sharpe Ratio. Compare investment performance relative to the risk taken.