Finance calculators

Loans, investing, and the math behind everyday money decisions.

Run the numbers on mortgages, loans, credit cards, investments, and retirement — with transparent formulas and editable assumptions.

Calculators
314
Topics: All Mortgage (23) Loans (11) Investing (65) Retirement (8) Budgeting (27)
314 results
Finance / Investing

ROI Calculator

Calculate return on investment, annualized ROI, and net gain from initial cost and ending value.

basic
13,675 4.3 1 min
Finance / Investing

Perpetuity Value Calculator

Compute the present value of a perpetuity (a perpetual fixed cash flow) given the per-period cash flow and the discount...

basic
20,250 4.8 1 min
Finance / Budgeting

Net Worth Calculator

Add up assets and subtract liabilities for a clear one-number snapshot of your financial position.

basic
12,898 4.5 1 min
Finance / Investing

Stock Profit Calculator

Compute the profit, total return, and percentage return on a stock trade after factoring in commissions and fees on both...

basic
6,928 3.9 1 min
Finance / Budgeting

Paycheck Calculator

Estimate take-home pay from gross salary after simplified federal tax, FICA, and voluntary deductions.

basic
743 4.9 1 min
Finance / Investing

Inflation Calculator

Convert a past amount into present-day purchasing power, or project a future amount at an assumed inflation rate.

basic
11,750 3.9 1 min
Finance / Investing

Payback Period Calculator

Compute the payback period of an investment given an upfront cost and constant annual cash inflow. Reports the simple an...

basic
22,836 4.7 1 min
Finance / Budgeting

Monthly Water Bill Estimator

Estimate your monthly residential water bill from the number of gallons used per day, the per-thousand-gallons unit rate...

basic
18,797 4.4 1 min
Finance / Budgeting

Break-Even Units Calculator

Compute the number of units a business must sell to break even, given fixed costs, the per-unit selling price, and per-u...

basic
21,037 4.3 1 min
Finance

Cash Ratio Calculator

Compute the cash ratio — the most stringent liquidity measure: cash & marketable securities ÷ current liabilities. > 1 m...

basic
21,939 4.6 1 min
Finance

Sortino Ratio Calculator

Compute the Sortino ratio — a Sharpe-style risk-adjusted return that penalises only downside volatility (σ of returns be...

basic
21,538 4.5 1 min