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Business Loan Calculator
Estimate monthly business loan payments, total interest, and total repayment, so you can compare offers on total cost — not just the monthly payment.
Calculators
Finance & business calculators
22 free calculators for borrowing, payoff planning, business economics, and growth — each with transparent formulas, a worked example, live charts, and a plain-language disclaimer. Pick the one that matches your question.
Loans & Debt
Borrowing costs, housing payments, and credit card payoff scenarios.
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Mortgage Payment Calculator
Estimate your monthly mortgage payment — principal and interest, property tax, and insurance — so you see the full housing cost, not just the loan.
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Credit Card Payoff Calculator
Estimate credit card payoff time, total interest, and total paid from your balance, APR, and monthly payment — and see how much paying extra saves.
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Auto Loan Calculator
Estimate your auto loan amount and monthly payment from the vehicle price, down payment, trade-in, sales tax, rate, and term — plus total interest.
Business Metrics
Unit economics, acquisition cost, churn, margins, and break-even.
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Profit Margin Calculator
Calculate gross profit, profit margin, and markup percentage from your revenue and cost — and see why margin and markup are never the same number.
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Margin vs Markup Calculator
Enter your cost and price to see gross margin and markup side by side, and understand why the same profit produces two very different percentages.
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Break-Even Calculator
Estimate break-even units and revenue from your fixed costs, price per unit, and variable cost per unit — how much you must sell before you profit.
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Working Capital Calculator
Calculate net working capital and the current ratio from your current assets and current liabilities to gauge short-term financial health.
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Customer Lifetime Value Calculator
Estimate customer lifetime and lifetime value from average revenue, gross margin, and monthly churn — the margin-aware number to compare against CAC.
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CAC Calculator
Calculate customer acquisition cost from your sales and marketing spend and new customers acquired, then weigh it against customer lifetime value.
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Churn Rate Calculator
Calculate your customer churn rate and retention rate for any period, plus the average customer lifespan your churn implies — a core SaaS health metric.
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CAC Payback Period Calculator
Calculate your CAC payback period — how many months it takes to recover customer acquisition cost from gross profit on that customer.
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Burn Rate & Runway Calculator
Calculate your startup's net monthly burn rate and cash runway — how many months of cash you have left at your current spend and revenue.
Growth & ROI
SaaS metrics, recurring revenue, compounding, and ROI tradeoffs.
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SaaS ROI Calculator
Estimate the monthly net benefit, annual ROI, and payback period of a software subscription, weighing its cost against time saved and revenue gained.
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MRR & ARR Calculator
Calculate your monthly recurring revenue (MRR) and annual recurring revenue (ARR) from your customer count and average revenue per account.
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Rule of 40 Calculator
Calculate your SaaS Rule of 40 score — revenue growth rate plus profit margin — and see whether your business clears the 40% benchmark.
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Compound Interest Calculator
Estimate your final balance, total contributions, and growth from a starting amount, monthly contributions, return rate, and time — see compounding work.
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ROI Calculator
Calculate return on investment percentage and net profit from your investment cost and final value, so you can compare projects on the same basis.
Personal & Planning
Savings goals, retirement, inflation, and pay conversions.
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Savings Goal Calculator
Estimate the monthly contribution needed to reach a savings goal, based on your target, current savings, timeline, and an assumed rate of return.
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Retirement Savings Calculator
Estimate a projected retirement balance from your current age, retirement age, current savings, monthly contributions, and return assumption.
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Inflation Calculator
Estimate the future cost of today's money and how much buying power it loses over time at an assumed inflation rate, so long-term plans stay realistic.
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Salary to Hourly Calculator
Convert an annual salary into an hourly, weekly, and monthly rate using your own hours per week and paid weeks per year — and convert back again.
Specialized & decision tools
Interactive tools for bigger money decisions — affordability, retirement, paychecks, and comparisons.
Job Offer Comparison Calculator
Compare two offers by total comp — base, bonus, equity, 401(k) match, and benefits.
Home Affordability Calculator
How much house you can afford using the 28/36 rule, with a monthly payment breakdown.
Rent vs Buy Calculator
Compare the true cost of renting vs buying over the years you'll actually stay.
401(k) Calculator
Project your retirement balance — including the free money from your employer match.
Take-Home Pay Calculator
Estimate your paycheck after federal, FICA, and state tax (2024).
Sales Tax Calculator
Add sales tax to a price or work backwards to remove it from a total.
Can I Afford It?
Check whether a new monthly payment fits your budget and debt-to-income ratio.
Loan Comparison
Put loan offers side by side and compare the real total cost — interest plus fees.
Debt Payoff Comparator
Snowball vs avalanche, side by side — payoff time and total interest.
Social Security Overpayment Calculator
What SSA withholds after an overpayment notice, the check that survives it, and the form that lowers the rate.
Lottery Tax Calculator
What a Powerball or Mega Millions jackpot actually pays after federal and state tax — lump sum vs annuity.
2027 Social Security COLA
What next year's cost-of-living increase would add to your monthly benefit.
How to get the most from these calculators
- Choose the calculator that matches the decision you're reviewing — loan payments, payoff timing, ROI, margin, break-even, CAC, or CLV.
- Enter realistic inputs first, then test conservative and stress-case assumptions to see how sensitive the result is.
- Read the formula, example, FAQs, and related guides on each page to understand the result before relying on it.