Calculate percentage off and savings instantly. Clean UI, live results, tax option, and downloadable PDF summary.

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.

Calculate CPM, cost, or impressions instantly. Enter any two to solve the third—live results, clear steps, tooltips, and one-click PDF export.

Convert basis points to percent, permille, and decimal—plus “x bps of y.” Instant results, clear steps, tooltips, and one-click PDF export.

Calculate CAGR, periods, initial or final value. Enter any three to solve the fourth—instant math, clear steps, examples, and PDF export.

Fast compound interest calculator: add deposits, pick frequency, see EAR and step-by-step math. Download your results as a PDF.

One tool for car EMI, leasing, refinancing and affordability. See payments, APR, taxes, fees and break-even—fast, mobile-friendly and accurate.

All-in-one loan tool: payment & APR (incl. fees), amortization, comparisons, business loans and student-loan eligibility—fast, accurate, mobile-ready.