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
Carried Interest Calculator — PE Fund Payouts
Estimate GP carried interest on private equity, venture, and real estate funds. Enter capital, profit, carry rate, hurdle, and catch-up terms.
Carry Trade Calculator — Estimate Interest & FX Returns
Estimate carry trade returns from interest rate differentials and currency moves. See how leverage amplifies both profit and risk.
Cash Act 2020 Calculator — Estimate Your $2,000 Payment
Estimate your CASH Act 2020 payment based on filing status, AGI, and dependents using the proposed $2,000 per person phase-out rules.
Cash Back Calculator — Compare Card Reward Rates
Estimate yearly credit card cash back from grocery, gas, dining, and everyday spending across four common reward structures.
Cash Conversion Cycle Calculator — DIO, DSO & DPO
Calculate the cash conversion cycle from inventory, receivables, and payables. See your DIO, DSO, and DPO breakdown with benchmarks to compare.
Cash Flow Calculator — Income vs Expense Tracker
Calculate your monthly cash flow by comparing income to expenses. Identify surplus or deficit and see how much you can save or invest each month.
Cash Flow to Debt Ratio Calculator — Gauge Solvency
Calculate the cash flow to debt ratio from operating cash flow and total debt to see how fast a company could repay what it owes.
Cash Out Refinance Calculator — Max Cash and New Payment
Estimate how much cash you can pull from a cash out refinance, your new loan amount, LTV, and monthly payment in seconds.
Cash Ratio Calculator — Measure Company Liquidity
Calculate the cash ratio instantly. See how much of current liabilities cash and equivalents can cover, with verdict bands and industry benchmarks.
CD Calculator — Certificate of Deposit Earnings
Calculate certificate of deposit interest and maturity value. Compare CD terms, compounding frequencies, and effective APY before locking your funds.
Cell Phone Plan Cost Calculator — Compare Two Plans
Compare two cell phone plans by total cost over 12 to 36 months, including line count, monthly rates, and one-time activation fees.
Child Cost Calculator — Estimate Raising a Child
Estimate the total cost of raising a child from birth to age 18 based on income, childcare, and region.
Child Tax Credit Calculator — Estimate Your 2026 Credit
Estimate your child tax credit for 2026 with refundable portion, earned income limits, and phase-out thresholds by filing status.
Churn Rate Calculator — Measure Customer Retention
Calculate customer churn rate from your starting customers, new signups, and ending count. See churned customers and annualized churn instantly.
CLTV Calculator — Estimate Customer Lifetime Value
Calculate customer lifetime value from order value, purchase frequency, margin, and lifespan, then compare it against acquisition cost.
Cobb-Douglas Production Function Calculator
Calculate output from the Cobb-Douglas function Q = A x L^a x K^b, with marginal products of labor and capital plus a returns-to-scale check.
COGS Calculator — Calculate Cost of Goods Sold
Calculate cost of goods sold from beginning inventory, purchases, returns, and ending inventory, plus gross margin.
Combined Ratio Calculator — Insurance Profitability
Calculate an insurance combined ratio from premiums, losses, and expenses. See if a policy book runs an underwriting profit or loss.