Free Loan, Interest, Mortgage & Financial Calculators
Start with the calculation you actually need. These browser tools cover daily interest and per diem, loan payments and payoff, mortgages, annuities, savings, investing, debt, seller financing, and advanced loan questions.
Turn calculations into printable documents
Make smarter mortgage & home-equity decisions
Two in-depth calculators with interactive loan schedules, scenario comparisons, printable results, and full CSV exports. No registration required.
Free Time Card & Timesheet Calculator
Enter start times, end times and unpaid breaks. Add overnight or split shifts, total weekly hours, estimate overtime and print or download a CSV timesheet. No signup required.
Popular interest and loan tools
Daily rate, dollar per diem, exact dates, and 360/365/366 comparisons.
Expanded calculatorAnnuity PV, FV & PaymentCalculate present value, future value, or the periodic payment required for a target.
New free toolLoan Payment Coupon GeneratorCreate and print monthly payment coupons online.
Loan & interest
Savings, investing & annuities
Mortgage & payoff
Professional loan, payoff & private-lending tools
These calculators handle the situations that generic payment calculators usually skip: exact dates, changing balances, construction draws, seller financing, and real payment histories.
Popular calculation problems
Start with the question you are trying to solve. Each page below explains the issue and sends you directly to the right free calculator.
More specialized calculators remain available through the navigation menu, including seller financing, irregular payment reconciliation, debt payoff, retirement, net worth, and rate conversion tools.