Finance & Investments
Model returns, debt payoff, and portfolio growth with calculators built for real decisions.
Loans & Mortgages
9Mortgage & Loan Payoff
Monthly payment, total interest, and payoff timeline.
Open calculatorAuto Loan Calculator
Monthly car payment after down payment, trade-in, and sales tax.
Open calculatorHome Affordability Calculator
How much house you can afford using the standard 28/36 debt-to-income rule.
Open calculatorRent vs. Buy Calculator
The true net cost of renting vs. buying over the years you plan to stay, equity included.
Open calculatorHome Equity & LTV Calculator
Current equity, loan-to-value ratio, and how much you could borrow against your home.
Open calculatorLoan Refinance Savings Calculator
Compare your current loan to a refinance offer — payment, interest, and total savings.
Open calculatorLoan Comparison Calculator
Compare two loan offers side by side — monthly payment, total interest, and total paid.
Open calculatorExtra Mortgage Payment Calculator
How much time and interest an extra amount added to every monthly payment actually saves.
Open calculatorBi-Weekly Mortgage Payment Calculator
Time and interest saved by switching from monthly to bi-weekly mortgage payments.
Open calculatorInvesting & Growth
11Compound Interest Calculator
See how a lump sum and regular contributions grow over time.
Open calculatorROI Calculator
Net profit, ROI %, and annualized return on any investment.
Open calculatorSimple Interest Calculator
Interest on the original principal only, with no compounding.
Open calculatorInflation Calculator
See how an assumed inflation rate erodes or grows purchasing power over time.
Open calculatorCrypto DCA Simulator
Simulate dollar-cost averaging into a volatile asset.
Open calculatorStock Average Cost Calculator
The cost-weighted average price across multiple purchases, plus unrealized gain or loss.
Open calculatorInvestment Fee Impact Calculator
How much a fund’s expense ratio actually costs you over decades, versus a lower-fee alternative.
Open calculatorAPR to APY Calculator
Convert APR to APY across annual, quarterly, monthly, and daily compounding.
Open calculatorCAGR Calculator
Compound annual growth rate between a beginning and ending value.
Open calculatorRule of 72 (Doubling Time) Calculator
How long an investment takes to double at a given rate of return.
Open calculatorPresent Value Calculator
Find how much a future sum of money is worth today, given a discount rate.
Open calculatorEveryday Money
8Percentage Calculator
Find a percentage of a number, what percent one number is of another, or percent change.
Open calculatorTip Calculator
Tip amount, total bill, and per-person split for any group size.
Open calculatorUneven Bill Split Calculator
Split a bill by what each person ordered, with tax and tip allocated proportionally.
Open calculatorSales Tax Calculator
Add sales tax to a price, or work out the pre-tax price from a tax-inclusive total.
Open calculatorDiscount Calculator
Find the sale price after a percent-off discount, or the percent off from two prices.
Open calculatorCar Depreciation Calculator
A vehicle's value decline year by year using the declining-balance method.
Open calculatorRent Affordability Calculator
What share of your income a rent payment takes up, versus the standard 30% threshold.
Open calculatorNumber to Words (Check Writing) Converter
Spell out a dollar amount in words, with the standard "and XX/100" cents notation.
Open calculatorDebt & Credit
6Debt-to-Income Ratio Calculator
Your DTI ratio, and how it compares to the lending thresholds banks actually use.
Open calculatorDebt Payoff Calculator
How long a fixed payment takes to clear a credit card or loan balance.
Open calculatorCredit Card Minimum Payment Calculator
See how long paying only the minimum actually takes, and what it really costs.
Open calculatorCredit Utilization Calculator
Your credit utilization ratio — a major factor in your credit score.
Open calculatorDebt Avalanche vs. Snowball Calculator
Compare the highest-interest-first and smallest-balance-first debt payoff strategies.
Open calculatorLump-Sum Extra Payment Calculator
How a single one-time extra payment shortens a loan and cuts total interest.
Open calculatorBudgeting & Savings
8Savings Goal Calculator
Find the monthly contribution needed to reach a savings target.
Open calculatorCollege Savings (529) Calculator
Project future college costs with tuition inflation, and the monthly savings needed to cover them.
Open calculatorNet Worth Calculator
Add up assets and liabilities to see where you stand.
Open calculator50/30/20 Budget Calculator
Split take-home pay into needs, wants, and savings, with custom percentages.
Open calculatorWedding Budget Calculator
Split a total wedding budget into venue, catering, photography, and every other category.
Open calculatorSubscription Cost Calculator
Add up every monthly and yearly subscription to see what you really spend per month and year.
Open calculatorEmergency Fund Calculator
How much to save for 3–6 months of essential expenses, and your progress so far.
Open calculatorNet Worth Goal Calculator
How many years to reach a net worth target, given contributions and expected return.
Open calculatorRetirement & Planning
4Retirement Savings Calculator
How much you need saved to retire on the 4% withdrawal rule.
Open calculator401(k) Employer Match Calculator
How much free employer match money your contribution rate earns — and what you might be missing.
Open calculatorRetirement Withdrawal Longevity Calculator
How many years your savings last at a given annual withdrawal and return.
Open calculatorAnnuity Payout Calculator
The fixed monthly payout that drains a lump sum to zero over a chosen number of years.
Open calculatorBusiness & Freelance
7Freelancer Hourly Rate Calculator
The rate you need to charge to hit your income goal after expenses and taxes.
Open calculatorBreak-Even Point Calculator
How many units you need to sell to cover fixed and variable costs.
Open calculatorPayback Period Calculator
How many years an investment takes to pay for itself, year by year.
Open calculatorOvertime Pay Calculator
Regular pay, overtime pay, and total pay from your hourly rate and hours worked.
Open calculatorSales Commission Calculator
Calculate commission across progressive tiers, tax-bracket style.
Open calculatorStartup Runway Calculator
How many months of runway your cash on hand gives you, and the projected out-of-cash date.
Open calculatorFreelance Project Quote Calculator
Turn estimated hours, your rate, and expenses into a project quote with a margin.
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