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Compounding Calculator

A calculator to visualize and understand the power of compounding and compound interest.
HS
Hari Sivaramakrishnan
Compound interest is the 8th wonder of the world. He who understands it, earns it; he who doesn’t, pays it. -- Albert Einstein
Here’s a simple calculator to better understand compounding. The doc has:
A
table
⁠
where you can adjust inputs
A
chart
⁠
that’s shows you growth over time
A
table
⁠
that contains one row for each time period. The chart is a just different way to view data in this table.

Use the calculator by:
Tweaking four values in the Value column to change formula inputs.
Clicking on the two buttons. Clear Schedule to clear the table and Generate Schedule to generate the compounding chart.

The calculator demonstrates the growth of 100$ compounding at the rate of 8%, 1 time per year, over a time period of 40 years.
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compound_interest.png
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Name
Value
Comments
Label
1
Starting Amount
100
​
P
2
Compounding Rate
0.08
0.08 for a compounding rate of 8%
r
3
Compounding times Per Time Period
1
Usually 1. The number of times growth rate is applied per time period.
n
4
Time Periods
40
​
t
There are no rows in this table
⁠

⁠
Clear Schedule
⁠
Generate Schedule
⁠
⁠
Compounding Schedule
1
⁠

Compounding Table
1
⁠

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