The formula to calculate the principal amount of simple interest is:
\[ P_{\text{Annual}} = \frac{100 \cdot \text{SI}_{\text{Annual}}}{r_{\text{Annual}} \cdot t_{\text{Annual}}} \]
Where:
The principal amount of simple interest is the amount invested, borrowed, or lent initially at a fixed rate for a given duration of time.
Simple interest is the extra amount gained/paid on the principal amount for the time period at a fixed rate of interest.
The annual rate of simple interest is the percent of the simple interest paid over the principal amount for the due period.
The time period of simple interest is the number of years for which the principal amount is invested/borrowed/lent at a fixed rate of interest.
Let's assume the following values:
Using the formula:
\[ P_{\text{Annual}} = \frac{100 \cdot 200}{10 \cdot 2} = 1000 \]
The principal amount is 1000.
| Simple Interest | Annual Rate (%) | Time Period (years) | Principal Amount |
|---|---|---|---|
| 100 | 5 | 1 | 2,000.00 |
| 100 | 5 | 2 | 1,000.00 |
| 100 | 5 | 3 | 666.67 |
| 100 | 5 | 4 | 500.00 |
| 100 | 5 | 5 | 400.00 |
| 100 | 10 | 1 | 1,000.00 |
| 100 | 10 | 2 | 500.00 |
| 100 | 10 | 3 | 333.33 |
| 100 | 10 | 4 | 250.00 |
| 100 | 10 | 5 | 200.00 |
| 100 | 15 | 1 | 666.67 |
| 100 | 15 | 2 | 333.33 |
| 100 | 15 | 3 | 222.22 |
| 100 | 15 | 4 | 166.67 |
| 100 | 15 | 5 | 133.33 |
| 200 | 5 | 1 | 4,000.00 |
| 200 | 5 | 2 | 2,000.00 |
| 200 | 5 | 3 | 1,333.33 |
| 200 | 5 | 4 | 1,000.00 |
| 200 | 5 | 5 | 800.00 |
| 200 | 10 | 1 | 2,000.00 |
| 200 | 10 | 2 | 1,000.00 |
| 200 | 10 | 3 | 666.67 |
| 200 | 10 | 4 | 500.00 |
| 200 | 10 | 5 | 400.00 |
| 200 | 15 | 1 | 1,333.33 |
| 200 | 15 | 2 | 666.67 |
| 200 | 15 | 3 | 444.44 |
| 200 | 15 | 4 | 333.33 |
| 200 | 15 | 5 | 266.67 |
| 300 | 5 | 1 | 6,000.00 |
| 300 | 5 | 2 | 3,000.00 |
| 300 | 5 | 3 | 2,000.00 |
| 300 | 5 | 4 | 1,500.00 |
| 300 | 5 | 5 | 1,200.00 |
| 300 | 10 | 1 | 3,000.00 |
| 300 | 10 | 2 | 1,500.00 |
| 300 | 10 | 3 | 1,000.00 |
| 300 | 10 | 4 | 750.00 |
| 300 | 10 | 5 | 600.00 |
| 300 | 15 | 1 | 2,000.00 |
| 300 | 15 | 2 | 1,000.00 |
| 300 | 15 | 3 | 666.67 |
| 300 | 15 | 4 | 500.00 |
| 300 | 15 | 5 | 400.00 |
| 400 | 5 | 1 | 8,000.00 |
| 400 | 5 | 2 | 4,000.00 |
| 400 | 5 | 3 | 2,666.67 |
| 400 | 5 | 4 | 2,000.00 |
| 400 | 5 | 5 | 1,600.00 |
| 400 | 10 | 1 | 4,000.00 |
| 400 | 10 | 2 | 2,000.00 |
| 400 | 10 | 3 | 1,333.33 |
| 400 | 10 | 4 | 1,000.00 |
| 400 | 10 | 5 | 800.00 |
| 400 | 15 | 1 | 2,666.67 |
| 400 | 15 | 2 | 1,333.33 |
| 400 | 15 | 3 | 888.89 |
| 400 | 15 | 4 | 666.67 |
| 400 | 15 | 5 | 533.33 |
| 500 | 5 | 1 | 10,000.00 |
| 500 | 5 | 2 | 5,000.00 |
| 500 | 5 | 3 | 3,333.33 |
| 500 | 5 | 4 | 2,500.00 |
| 500 | 5 | 5 | 2,000.00 |
| 500 | 10 | 1 | 5,000.00 |
| 500 | 10 | 2 | 2,500.00 |
| 500 | 10 | 3 | 1,666.67 |
| 500 | 10 | 4 | 1,250.00 |
| 500 | 10 | 5 | 1,000.00 |
| 500 | 15 | 1 | 3,333.33 |
| 500 | 15 | 2 | 1,666.67 |
| 500 | 15 | 3 | 1,111.11 |
| 500 | 15 | 4 | 833.33 |
| 500 | 15 | 5 | 666.67 |