Simple Interest
Enter the principal, rate, and time period.
Total amount (principal + interest)
$0
Interest earned: $0
Interest earned
$0
Effective annual return
0%
Monthly interest
$0
Daily interest
$0
Worked example
With the default inputs shown below, this calculator returns the following results:
| Input | Value |
|---|---|
| Principal amount ($) | $10,000 |
| Annual interest rate (%) | 5% |
| Time period | 3 |
| Time unit | Years |
| Result | Value |
|---|---|
| Total amount (principal + interest) | $11,500.00 |
| Interest earned | $1,500.00 |
| Effective annual return | 5% |
| Monthly interest | $41.67/mo |
| Daily interest | $1.37/day |
Values shown are produced by this page in your browser; change any input to update them.
How to use the Simple Interest
- Principal amount ($) — default $10,000
- Annual interest rate (%) — default 5%
- Time period — default 3
- Time unit — default Years
- Press Calculate to update the results instantly.