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
Business Loan Calculator — Estimate Monthly Payments
Calculate your monthly business loan payment with interest rate, term, and origination fee inputs. Compare total borrowing costs across lenders.
Business Valuation Calculator — Estimate Company Worth
Estimate what your small business is worth using SDE multiples by industry, revenue, and asset value. Get a defensible sale price in seconds.
Buying Power Calculator — Real Value of Your Money
See how inflation shrinks the buying power of your money over time. Enter an amount, inflation rate, and years to see its real value.
CAC Calculator — Find Your Customer Acquisition Cost
Calculate customer acquisition cost from ad spend, sales costs, and software. Includes LTV to CAC ratio and payback guidance.
CAGR Calculator — Measure Investment Growth Rate
Calculate compound annual growth rate from any starting and ending value. Enter both amounts plus the number of years to get CAGR instantly.
California Overtime Calculator — Estimate CA OT Pay
Calculate California overtime pay: 1.5x after 8 daily hours, 2x after 12, weekly OT over 40 hours, and 7th consecutive day rules.
California Sales Tax Calculator — County Rates & Totals
Estimate California sales tax by county, from the 7.25% statewide base to 10.25% district maximums. Enter a purchase amount for the exact after-tax total.
California Stimulus Check Calculator — Payment Estimator
Estimate Golden State Stimulus II and Middle Class Tax Refund payments using your income, filing status, and dependents.
California Tax Calculator — Estimate State Income Tax
Estimate California state income tax with 2025 brackets, standard deductions, pre-tax deductions, and the 1% millionaire surcharge.
Call and Put Option Calculator — Estimate Premiums
Estimate call and put option premiums in seconds. Enter stock price, strike, volatility, rates, and days to expiration for a fair value.
Cap Rate Calculator — Evaluate Rental Property Returns
Calculate cap rate from price, rent, vacancy, and operating expenses. See NOI instantly and compare rental deals with real numbers.
UK Capital Gains Tax Calculator — Estimate Your Bill
Work out UK capital gains tax on shares, property or crypto. Applies the £3,000 allowance and 18%/24% rates to estimate your CGT bill.
Capital Gains Yield Calculator — Measure Stock Appreciation
Calculate capital gains yield from a stock's price change. See appreciation percentage, dollar gain per share, and total return including dividends.
CAPM Calculator — Estimate Expected Stock Returns
Calculate expected return with CAPM: enter risk-free rate, beta, and market return to get the required return and risk premium instantly.
Car Affordability Calculator — Find Your Max Car Price
Calculate how much car you can afford from your monthly income, debts, down payment, trade-in, and APR. See your maximum car price instantly.
Car Loan EMI Calculator — Monthly Installment & Cost
Estimate your monthly car loan EMI plus total interest and fees. Adjust down payment, rate, and tenure to compare financing offers before you sign.
Car Refinance Calculator — Compare Payments & Savings
Compare your current auto loan against a refinance offer. See the new monthly payment, total savings, and how fast the fees pay for themselves.
Carpooling Calculator — Split Gas Costs & Save
Calculate how much you save by carpooling. Split fuel costs among passengers and see weekly, monthly, and yearly savings.