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APY Calculator

Calculate the Annual Percentage Yield (APY) on your savings or investment

APY Calculator MMA Calculator
Currency:
Initial deposit:
₹
APR (%):
%
APY (%):
%
Years:
Months:
Compound interval:
Regular deposits: (optional)
₹
Results will appear here

How to use ?

1

Currency

Initial deposit

APR (%) →  APY (%)

Years / Months

Compound interval

 

2

Some Calculate

Click the Calculate Button

3

Some Result

Final balance

Initial deposit

Total interest earned

APR → APY

Total deposits made

Summary

Monthly / Yearly Breakdown

Why Use?

Why Use This APY Calculator?

What is APY?
APY stands for Annual Percentage Yield. It reflects the total return on your savings or investment over one full year, taking into account the effect of compounding. Unlike a simple interest rate, APY shows you the actual growth of your money after interest is calculated and added back repeatedly throughout the year.

How is APY Calculated from APR?
Formula: APY = (1 + r/n)^n - 1
Where r is the nominal annual rate as a decimal and n is the number of compounding periods per year.

Example: 6% APR with monthly compounding (n=12):
APY = (1 + 0.06/12)^12 - 1 = 0.06168 = 6.17%

This means your money actually grows at 6.17% per year, not just 6%.

How to Calculate APY from Principal and Interest Earned?
Formula: APY = 100 × [(1 + Interest/Principal)^(365/Days) - 1]

Example: You earn ₹50 on a ₹1,000 investment over 365 days:
APY = 100 × [(1 + 50/1000)^1 - 1] = 5%

How to Calculate Interest from APY?
Formula: Interest = Principal × (APY/100)

Example: ₹1,000 at 5% APY gives Interest = 1000 × 0.05 = ₹50 per year.

APY vs APR — What is the Difference?
APR is the base advertised rate that does not include compounding. APY is the real effective rate that includes compounding. The more frequently interest compounds, the higher the APY compared to the APR.

Example: Both Investment A (semi-annual) and Investment B (monthly) have 5% APR.
Investment A APY = 5.0625%
Investment B APY = 5.1164%
On ₹10,000, Investment B earns ₹511.62 vs ₹506.25 for Investment A — a small but real difference.

How to Use This Calculator?
Enter your initial deposit, the APY or interest rate, and the time period. You can also add regular monthly contributions to see how consistent saving accelerates your growth. The calculator will show your projected interest earned and final balance.