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Gross Profit Margin Calculator
Calculate gross profit and determine how much revenue remains after direct cost of goods or services sold.
Business & Financial Calculators
Use these free calculators to evaluate profitability, margins, and investment returns.
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Net Profit Margin Calculator
Calculate net profit and see what percentage of revenue remains after the expenses you enter.
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Return on Investment Calculator
Measure the gain or loss on an investment and calculate its return on investment percentage.
Homebuyer Planning Tools
Estimate affordability, compare renting and buying, and plan an emergency reserve.
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Affordability estimator
Estimate a planning-level maximum home price from income, debt, rate, term, and down payment.
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Rent vs. buy snapshot
Compare direct cash outflow over the number of years you expect to stay.
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Emergency reserve target
Estimate a homeowner cash reserve for income disruption or unexpected repairs.
Home-buying preparation checklist
- Review credit reports and dispute errors early.
- Set a monthly payment ceiling before shopping.
- Save separately for down payment and closing costs.
- Keep an emergency reserve after closing.
- Compare total lender costs, not only the interest rate.
- Estimate taxes, insurance, HOA and maintenance.
- Avoid major new credit before loan closing.
- Schedule an independent home inspection.
Understanding your payment
A complete payment can include principal, interest, property taxes, homeowners insurance, mortgage insurance, HOA dues, and optional extra principal.
Closing-cost planning
Set aside funds for lender charges, appraisal, title services, prepaid taxes and insurance, escrow funding, inspection, and moving expenses.
Maintenance budgeting
Homeownership adds repairs and replacements. Build a monthly maintenance amount into the budget rather than relying entirely on emergency savings.
Rate comparison
Compare APR, points, lender credits, cash-to-close, monthly payment, and how long you expect to keep the loan.
Debt-to-income
Housing DTI compares housing costs with gross income. Total DTI also includes recurring debts such as auto, student loan, and credit-card payments.
Extra payments
Applying extra money to principal can reduce interest and shorten payoff time. Confirm that the servicer applies the amount to principal and check for restrictions.
These tools provide simplified educational estimates. They do not account for every tax rule, lender guideline, appreciation assumption, maintenance event, transaction cost, or personal circumstance.