Estimate your home loan amount, monthly payment, escrow costs and APR in one simple mortgage calculator. Enter price, down payment and rate to see clear USD results.

Instantly calculate margin, markup, VAT, net and gross prices with this smart Margin & VAT Calculator. Perfect for quick profit checks for business owners.

Instant stock profit calculator—enter shares, prices, and fees to see net buy/sell, profit, ROI%, and break-even.

Fast ROI calculator: enter any two values—cost, gain, or ROI%—and get the third plus profit and ratio. Clear steps and downloadable PDF.

Instant VAT calculator to add or remove VAT, convert net ↔ gross, and get tax amount in real time. Currency options, tooltips, and PDF export. Free online.

Free margin calculator: enter any two—cost, revenue, profit or margin—to get the rest. Supports %/decimal, currency symbol/subunit, and instant PDF export.

Calculate PED fast with the midpoint method. Enter P₀, Q₀, P₁, Q₁ to see %ΔQ, %ΔP, elastic vs inelastic, and revenue impact—free today.

Convert APR to APY with compounding and see final balance. Monthly, daily, or custom frequency. Clear steps, tooltips, and one-click PDF.

Calculate pre-money and post-money from investment and equity. Enter any two fields to solve the rest—instant results, clear steps, and PDF export.