Finance Calculators
Financial decisions have long-term consequences. A half-percent difference in mortgage rate can cost tens of thousands over the life of a loan. Not understanding compound interest means underestimating how much your savings can grow — or how fast debt accumulates. Our finance calculators cover the numbers that matter most: mortgage payments, compound growth, investment returns, loan payoffs, and retirement planning. Whether you are buying your first home, comparing loan offers, or building an emergency fund, these tools help you run the numbers before you commit your money.
254 calculators available
Commercial Lease Calculator — Estimate Total Rent Cost
Estimate total commercial lease cost with base rent escalations, NNN pass-throughs, and free rent months before you sign.
Commission Calculator — Estimate Your Sales Earnings
Calculate sales commission pay from rate, base salary, split, and draw. See gross commission, your take-home share, and effective rate instantly.
Commute Cost Calculator — Estimate Daily Drive Expenses
Calculate your true daily, weekly, and yearly commuting costs including fuel, parking, and vehicle wear.
Compound Growth Calculator — Project Exponential Growth
Project compound growth for revenue, users, or any metric. Enter a start value, growth rate per period, and period count for future value and doubling time.
Compound Interest Calculator — Investment Growth
Calculate compound interest growth over time. See how your investment grows with different rates, compounding frequencies, and regular contributions.
Compound Interest Rate Calculator — Find the Rate You Need
Solve for the compound interest rate needed to turn a starting balance into a target amount. Compare monthly, daily, and annual compounding results.
Compound Savings Calculator — Monthly Growth & Interest
Calculate how your monthly savings grow with compound interest over time. See total contributions, interest earned, and future value of regular deposits.
Consulting Fees Calculator — Set Your Hourly Rate
Calculate consulting fees from your target income, expenses, and billable hours. Get hourly, daily, and monthly retainer rates instantly.
Consumer Surplus Calculator — Measure Buyer Benefit
Calculate consumer surplus from maximum willingness to pay and market price. See per-unit savings and total buyer benefit instantly.
Continuous Compound Interest Calculator — Pe^rt
Compute continuously compounded interest with A = Pe^rt. Compare continuous vs daily compounding, APY, and doubling time instantly.
Contribution Margin Calculator — Units, Ratio, Break-Even
Calculate contribution margin per unit, total dollars, CM ratio, and break-even units from your price, variable cost, and sales volume.
Cost of Capital Calculator — Estimate WACC
Compute your company's weighted average cost of capital from equity, debt, and tax inputs to set a reliable hurdle rate for valuations and projects.
Cost of Doing Business Calculator — Know Your True Costs
Calculate your true cost of doing business from fixed and variable expenses. Set prices that cover overhead and protect your profit margin.
Cost of Equity Calculator — DGM & CAPM Methods
Estimate cost of equity with the dividend growth model or CAPM, then use the rate in WACC builds and DCF valuation work.
Cost Per Minute Calculator — Calculate Time-Based Rates
Calculate the cost per minute for services, projects, or time-based activities with our easy-to-use calculator.
Count Hours Calculator — Calculate Work Hours and Billable Time
Calculate total hours between two times, track work hours, or count hours for billing and payroll purposes.
Coupon Payment Calculator — Periodic Bond Interest
Calculate the periodic coupon payment on any bond from face value, annual coupon rate, and payment frequency. See annual income and lifetime totals.
Coupon Rate Calculator — Find a Bond's Coupon Rate
Enter a bond's coupon payment and face value to work out its coupon rate, total annual interest, and per-period cash flow.