Compounding Calculator
See how money grows with daily, weekly, monthly, or yearly compounding and any time length
Your numbers
Starting amount
The money you begin with, in rupees (LKR).
How often it grows (compounding)
This is how many times the growth is applied. Daily means “every day,” yearly means “once a year,” and so on.
Growth per step
The percent your money grows each day before the next step.
How long you leave it
Example: 2 years, or 24 months, or 730 days—type any amount that matches how you think about the time.
Length
Use whole numbers or decimals, then pick the unit on the right.
Time unit
End balance
Rs. 6,188.68
after the growth and time you set
About 730 steps of compounding (about one step per day).
Total gain
Rs. 5,188.68
on top of what you put in
Total return
518.87%
vs starting amount
Multiple
6.19×
end vs start
Per-step rate
0.25%
per day
Breakdown
This tool uses a steady growth rate each step. It does not include fees, tax, or changing rates—real products may differ.
What is compounding?
Compounding means each time your money grows, the next step uses the new, larger amount. It is the same idea as “interest on interest” or “returns on your past returns,” which is why long time spans can change results a lot, especially with frequent steps like daily.
How to read your result
Enter what you start with, how large each step of growth is (as a percent for that same step—daily percent if you choose Daily, monthly percent if you choose Monthly, and so on), how often compounding runs, and how long you keep the money in. The calculator then multiplies the effect across all those steps.
For questions like “Rs. 1,000 at 0.25% per day for 2 years,” pick Daily, set growth per step to 0.25%, and set the length to 2 years (or 730 days, which is the same idea using 365-day years).
This compounding growth calculator shows what happens when a fixed percent is applied again and again over time—useful for “what if” questions about daily, weekly, monthly, or yearly growth. It uses simple, steady assumptions and is not a substitute for bank, fund, or tax advice.
Frequently asked questions
- What is compounding in simple terms?
- Compounding means every time your balance grows, the next growth step uses the new, larger number—not only your original money. The more often that happens, the faster the stack can build up over a long time.
- What does 'growth per step' mean?
- It is the percent gain for one compounding turn. If you pick Daily, enter the percent per day. If you pick Yearly, enter the percent per year, so the number always matches the frequency you choose.
- How long is one year in this tool?
- For conversions we use 365 days in a year, 52 weeks in a year, and 12 months in a year. This keeps results easy to repeat and share; real calendar products can differ slightly for leap years or business-day rules.
- Does this include tax or bank fees?
- No. The number is a math illustration only. Real banks, unit trusts, and stocks may have fees, changing rates, and tax that change what you keep.