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.
432 calculators available
Markup vs Margin Calculator — Product Pricing Tool
Calculate markup percentage, gross margin, and selling price from cost. Understand the difference between markup and margin to price products profitably.
Maturity Value Calculator — Estimate Investment Value
Calculate the maturity value of a fixed deposit, CD, or bond from principal, rate, term, and compounding frequency.
Maximum Drawdown Calculator — Measure Portfolio Risk
Enter eight portfolio marks to find the deepest peak-to-trough decline, the recovery gain it demands, and how long the path stayed underwater.
Meeting Cost Calculator — Calculate Meeting ROI
Calculate the true cost of business meetings including time, resources and opportunity costs.
Mega Millions Payout Calculator — Payment Schedule
See the full Mega Millions payout schedule: every graduated annual payment, the cash option, and the year your total payments overtake the lump sum.
Mileage Reimbursement Calculator — Standard vs Actual
Estimate mileage reimbursement at 70 cents per mile and compare the IRS standard rate against the actual expense method to see which one pays more.
Millionaire Calculator — Years to Your First $1 Million
Estimate how many years until you reach $1 million from your current savings, monthly contributions, and expected return.
Missouri Sales Tax Calculator — Combined Rate Tool
Estimate Missouri sales tax from the 4.225% state rate plus county, city, and special district rates. See your after-tax total instantly.
Modified IRR Calculator — Evaluate True Returns
Compute the modified internal rate of return with separate reinvestment and finance rates to judge projects accurately.
Money Counter Calculator — Total Your Cash Drawer
Count bills and coins by denomination, compare the total to your till float and recorded sales, and get an instant over or short verdict.
Money Market Account Calculator — Interest & Fees
Project money market account growth with tiered APYs, monthly deposits, and below-minimum fees — see interest earned and your real net yield.
Money Multiplier Calculator — Bank Money Creation
Compute the money multiplier from any reserve ratio and currency drain, then see the total deposits and new money a bank deposit can create.
Money Per Hour Calculator — Your True Earnings Rate
Divide what you actually earned by every hour it took — paid and unpaid — to see your true money per hour and full-time equivalent.
Money Supply Calculator — M1, M2, M3 Aggregates
Build M1, M2, and M3 money supply aggregates from currency, deposits, and money fund components, with M2 growth and liquidity mix.
Money Weight Calculator — How Much Does Cash Weigh?
Calculate the physical weight of any dollar amount in US bills or coins. Enter amount, pick denomination, get instant weight in pounds and kilograms.
Month Counter Calculator — Count Months Between Dates
Calculate the exact number of months between two dates. Useful for leases, loans, project timelines, and employment tenure tracking.
Month Over Month Calculator — MoM Growth & Annualized Rate
Compute month-over-month percentage change, dollar change, and the annualized run rate, with a same-month-last-year check for seasonality.
Monthly Income Calculator — Total All Income Streams
Add salary, hourly gigs, freelance work, rental, and investment income into one monthly total with annual and weekly equivalents.