Loan Calculator - Amortization & Total Loan Cost
Free online loan calculator. Determine monthly payments, total interest paid, and payoff schedules for any term loan.
Inputs
🔒 Local ProcessingHow to Use This Calculator
- Enter loan amount, interest rate, and term to see your exact monthly obligation.
Formula & Mathematical Method
Standard term loan amortization formula.
M = P × [ r(1 + r)^n ] / [ (1 + r)^n - 1 ]Explanation of Variables
| Symbol | Variable Name | Description & Role in Calculation |
|---|---|---|
| P, r, n | Loan Parameters | Principal, monthly rate, and payment count. |
Worked Calculation Examples
$25k Loan at 7%
Scenario: 3-year personal loan.
Interpretation of Results
Review your calculated returns, periodic commitments, or asset projections to evaluate financial feasibility. Results distinguish between principal invested, accumulated interest or capital gains, and effective yield rates.
Primary Financial Output
The core economic value resulting from your input parameters and compounding frequency.
Key Context: Always compare this projection against alternative asset allocations and inflation benchmarks.
Practical Use Cases
Personal Financial Planning
Establish realistic monthly savings, borrowing, or investment targets to meet milestones.
Credit and Debt Evaluation
Quantify the true long-term interest cost of borrowing before signing binding loan agreements.
Limitations & Key Assumptions
- Projections assume constant interest rates and unvarying compounding cycles over the entire horizon.
- Excludes external macroeconomic variables such as inflation, regulatory taxation changes, or brokerage transaction fees.
- Financial calculators provide mathematical projections for educational planning and do NOT constitute certified investment advice.