Loans & Investments
Compound interest, loan payments, investment growth, and savings projections.
Available tools (6)
Compound Interest Calculator
Calculate compound and simple interest, investment growth, and savings accumulation with live charts and breakdown schedule.
Mortgage Calculator
Calculate your mortgage payments, compare annuity and differentiated schedules, and see how extra payments save you money.
Refinance Calculator
Compare your current mortgage against a new loan to calculate monthly payment savings and your exact break-even timeline. Evaluate how interest rate changes, discount points, closing costs, and cash-out options impact your lifetime savings.
Loan Calculator
Calculate loan payments, compare annuity and differentiated schedules, simulate extra payments, and explore balloon or interest-only options.
Credit Card Payoff Calculator
Calculate credit card payoff timelines, escape the minimum payment trap, simulate extra monthly payments, and see exact interest savings.
Car Lease Calculator
Calculate auto lease payments and drive-off costs
How to Choose the Right Investment & Loan Calculator
Selecting the optimal borrowing or investment model depends on whether your priority is minimizing total interest charges, modeling growth over long horizons, or assessing debt consolidation options.
1. Define Borrowing vs. Capital Growth Scenarios
Use the Loan Calculator for fixed-term installment financing and early payoff simulations. Choose the Compound Interest Calculator to evaluate long-term wealth accumulation with regular periodic contributions.
2. Assess Amortization and Payoff Dynamics
Examine annual and monthly payment schedules to see how early extra payments accelerate principal reduction and drastically cut compounding finance charges.
3. Compare Consolidation & Refinancing Advantage
Use specialized tools like Refinance Calculator or Credit Card Payoff Calculator to evaluate break-even horizons after factoring in closing costs or balance transfer terms.
Frequently Asked Questions
Expert guidance on calculation methodologies, statutory rules, and financial formulas.
What is the primary difference between simple and compound interest?
Simple interest is calculated solely on the initial principal balance throughout the duration of the loan or deposit. Compound interest is calculated on the initial principal plus all accumulated interest from prior periods, generating exponential growth or higher total borrowing cost over time.
How do extra principal payments shorten loan repayment periods?
Extra payments directly reduce the outstanding principal balance upon which future interest is calculated. Because less interest accrues each subsequent month, a larger share of each standard monthly payment is applied toward the remaining principal, exponentially accelerating payoff.
How does compounding frequency affect investment returns?
The more frequently interest compounds (daily or monthly versus annually), the faster interest begins earning interest on itself. For identical nominal annual rates, daily compounding yields a higher Effective Annual Rate (EAR) than annual compounding.
When does loan refinancing make financial sense?
Refinancing is advantageous when the interest rate reduction or term adjustment saves more over the remaining loan horizon than the total closing costs and origination fees incurred, or when it eliminates costly private mortgage insurance.