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
DART Rate Calculator — OSHA Safety Benchmark Tool
Calculate your DART rate from OSHA recordable cases and total hours worked, then compare it against the average for your industry.
Data Usage Calculator — Estimate Monthly Data Needs
Estimate your monthly data usage based on streaming, calls, social media, and gaming habits to pick the right data plan.
Days Inventory Outstanding Calculator — DIO & Turns
Calculate days inventory outstanding from average inventory and COGS, with turnover, daily cost of goods sold, and a speed verdict for your stock.
Days Payable Outstanding Calculator — Measure DPO
Calculate days payable outstanding from accounts payable and COGS, compare against 30-60 day norms, and see implied payables turnover.
Days Sales Outstanding Calculator — Countback Method
Calculate DSO with the countback method using monthly credit sales. Compare rolling DSO against the simple average formula and spot aged receivables early.
DCF Calculator — Estimate Intrinsic Value
Project free cash flows, discount them at your WACC, and add a Gordon Growth terminal value to estimate what a business is worth today.
Deadweight Loss Calculator — Measure Welfare Loss
Calculate deadweight loss from a tax, price control, or monopoly wedge. Enter two price-quantity pairs to size the Harberger triangle in dollars.
Debt Avalanche Calculator — Payoff Time & Interest Saved
Simulate the debt avalanche method on two debts: enter balances, APRs, minimums, and your monthly budget to see payoff months and interest saved.
Debt Payoff Calculator — Extra Payment Savings
Enter your balance, APR, and monthly payment to see your debt-free date, total interest, and how much an extra payment saves.
Debt Consolidation Calculator — Compare Payments & Savings
Compare your current debt payments against one consolidation loan. See the new payment, interest saved, and if fees erase the deal.
Debt Payoff Calculator — Debt Free Date & Savings
Stack extra payments on up to three debts and see your total debt-free date, interest paid, and savings versus minimum payments alone.
Debt Snowball Calculator — Payoff Order & First Win
Run the debt snowball method on up to 3 balances. See your payoff order, first-win month, and the interest gap vs the debt avalanche.
Debt to Asset Ratio Calculator — Leverage Check
Enter short-term debt, long-term debt, other liabilities, and total assets to get your debt to asset ratio, equity, and leverage band.
Debt to Capital Ratio Calculator — Leverage Check
Enter short-term debt, long-term debt, and equity to get your debt to capital ratio, leverage band, D/E companion, and industry benchmarks.
Debt to Equity Ratio Calculator — Measure Leverage
Enter total liabilities and shareholders' equity to get your debt to equity ratio instantly, with benchmarks that show when leverage is a problem.
Debt to Income Ratio Calculator — Check Your DTI
Calculate your debt to income ratio from monthly debt payments and gross income, and see where you land against the 36% and 43% mortgage thresholds.
Decimal Time Converter — Hours to Decimal
Convert decimal hours to hours and minutes or vice versa. Built for payroll, billing, and time tracking accuracy.
Defensive Interval Ratio Calculator — Days of Cash
Calculate the defensive interval ratio: how many days cash, securities, and receivables can cover operating expenses. Enter your figures for an instant result.