Category
Finance
Loans, savings, mortgages, retirement and personal finance — all with assumptions you control.
Model mortgages, personal loans, compound interest, retirement savings, and debt payoff scenarios before you commit. Our finance tools show monthly payments, total interest, and amortization schedules with inputs you control — ideal for comparing offers, planning a budget, or stress-testing a major purchase.
16 tools · Private · Browser-only
Featured calculators
Popular starting points for finance homework and quick checks.
Mortgage Calculator
Monthly payment and total interest.
OpenLoan Calculator
Personal loan payment estimate.
OpenCompound Interest Calculator
Growth with compounding.
OpenInvestment Calculator
Future value of investments.
OpenRetirement Calculator
Retirement savings projection.
OpenDebt Payoff Calculator
Time to pay off debt.
OpenRecently added & popular
Guides & comparisons
Mortgage vs Rent: Which Makes Financial Sense?
Buying builds equity but ties up capital; renting offers flexibility with no ownership upside. Compare costs, break-even timelines, and lifestyle factors before deciding.
Mortgage Payment Basics: What Goes Into Your Monthly Bill
Your monthly mortgage payment depends on loan amount, interest rate, and term. Here is how each factor changes what you pay over time.
Loans
Investing & saving
Personal finance
Inflation Calculator
Purchasing power over time.
OpenSalary Calculator
Annual salary from hourly rate.
OpenHourly-to-Salary Calculator
Hourly rate from annual salary.
OpenBudget Allocation Calculator
Split income into needs, wants, savings.
OpenNet Worth Calculator
Assets minus liabilities.
OpenDebt Payoff Calculator
Time to pay off debt.
OpenCredit Card Payoff Calculator
Payoff time and interest.
Open