Interest Calculator
Calculate simple and compound interest for loans, investments, and savings. Compare different interest rates and compounding frequencies.
📊 Input Parameters
Simple Interest
Compound Interest
📈 Results
Principal Amount
$10,000
Interest Earned
$2,762.82
Total Amount
$12,762.82
Comparison
Type | Interest Earned | Total Amount |
---|---|---|
Simple Interest | $2,500.00 | $12,500.00 |
Compound Interest | $2,762.82 | $12,762.82 |
Difference | $262.82 | $262.82 |
Calculation Breakdown
Principal Amount: $10,000.00
Annual Interest Rate: 5.00%
Time Period: 5 years
Compound Interest Formula: A = P(1 + r/n)nt
Calculation: 10000 * (1 + 0.05/12)(12*5) = $12,762.82
Interest Earned: $12,762.82 – $10,000.00 = $2,762.82
Title: Interest Calculator Simple & Compound Interest Tool
Description: Calculate simple or compound interest for loans, savings, or investments. A powerful interest calculator for accurate results.
Interest Calculator
Calculate simple and compound interest instantly with this flexible Interest Calculator. Great for finance students and professionals.
- ➕ Simple & compound modes
- 💵 Accurate ROI forecasts
- 🔄 Reset & Recalculate options
📊Input Parameters - Principal Amount ($)Annual Interest Rate (%)Time Period Years Months Compounding Frequency Annually Quarterly Monthly Daily
- Simple Interest
- Compound Interest
Calculate Interest
📈Results
Principal Amount
$10,000.00
Interest Earned
$2,833.59
Total Amount
$12,833.59
Comparison
Type
Interest Earned
Total Amount
Simple Interest
$2,500.00
$12,500.00
Compound Interest
$2,833.59
$12,833.59
Difference
$333.59
$333.59
Calculation Breakdown
Principal Amount: $10,000.00
Annual Interest Rate: 5.00%
Time Period: 5 years
Compound Interest Formula: A = P(1 + r/n)nt
Compounding Frequency: Monthly
Calculation: 10000.00 * (1 + 0.0500/12)(12 × 5) = $12,833.59
Interest Earned: $12,833.59 – $10,000.00 = $2,833.59
Interest Calculator 2025 | Calculate your financial growth with precision
Simple Interest
The following is a basic example of how interest works. Derek would like to borrow $100 (usually called the principal) from the bank for one year. The bank wants 10% interest on it. To calculate interest:
$100 × 10% = $10
This interest is added to the principal, and the sum becomes Derek’s required repayment to the bank one year later.
$100 + $10 = $110
Derek owes the bank $110 a year later, $100 for the principal and $10 as interest.
Let’s assume that Derek wanted to borrow $100 for two years instead of one, and the bank calculates interest annually. He would simply be charged the interest rate twice, once at the end of each year.
$100 + $10(year 1) + $10(year 2) = $120
Derek owes the bank $120 two years later, $100 for the principal and $20 as interest.
The formula to calculate simple interest is:
interest = principal × interest rate × term
When more complicated frequencies of applying interest are involved, such as monthly or daily, use the formula:
interest = principal × interest rate ×
term
frequency
However, simple interest is very seldom used in the real world. Even when people use the everyday word ‘interest,’ they are usually referring to interest that compounds.
Interest Calculator - Calculate simple and compound interest for loans, investments, and savings. Compare different interest rates and compounding frequencies.
- An interest calculator is essential for understanding how your money grows over time. This powerful interest calculator works with savings accounts, investments, loans, and other financial products to show potential earnings or costs.
- The interest calculator supports both simple and compound interest calculations. This versatile interest calculator helps you compare different investment options and savings strategies to maximize your financial returns.
- Our comprehensive interest calculator includes options for regular deposits and withdrawals. This advanced interest calculator shows how consistent contributions or payments affect your account balance over various time periods.
- The interest calculator makes complex financial concepts easy to understand. Whether you’re planning retirement savings or calculating loan costs, this interest calculator provides clear, actionable insights for your financial decisions.
- Financial planners recommend using an interest calculator for long-term goal setting. This reliable interest calculator helps you determine how much you need to save monthly to reach specific financial milestones.
- The interest calculator also works for comparing credit cards and loan offers. Use this interest calculator to understand the true cost of borrowing and make informed decisions about debt management.
- Start building wealth today with our accurate interest calculator. This interest calculator transforms complex mathematical formulas into simple, understandable results that guide your financial planning and investment strategies.
Inflation Rate:
The average inflation rate in the U.S. in the past 100 years has hovered around 3%. As a tool of comparison, the average annual return rate of the S&P 500 (Standard & Poor’s) index in the United States is around 10% in the same period. Please refer to our Inflation Calculator for more detailed information about inflation. - For our Interest Calculator, leave the inflation rate at 0 for quick, generalized results. But for real and accurate numbers, it is possible to input figures in order to account for inflation.
