Kisan Vikas Patra doubling period. The KVP Calculator takes amount invested, interest rate and returns time to double plus maturity value, interest earned. Results update as you type, and the formula is shown under the result so you can repeat it in your own spreadsheet.
Government-backed schemes publish their interest rates quarterly and market-linked funds do not guarantee returns. Enter the current rate for the scheme and treat market-return assumptions as scenarios rather than promises. Use the worked example below to check the maths against your own figures.
How the KVP Calculator works
Kisan Vikas Patra doubles the investment at maturity; at 7.5% compounded yearly that takes about 9 years and 7 months (115 months). Interest is taxable.
Worked example
With the example values (amount invested of ₹100,000, interest rate of 7.5%), the time to double is 9 years 7 months; maturity value ₹200,000.00, interest earned ₹100,000.00. Change any figure above and the result updates immediately; use Copy results to paste the summary into a note or email.
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Frequently Asked Questions
How is time to double calculated?
doubling time = ln 2 ÷ ln (1 + rate), in years.
Which figures do I need?
Amount invested, interest rate. Take them from the same period and the same set of accounts or reports so the ratio is consistent, and check the example values as a guide to the units expected.
Is the interest rate fixed?
Small-savings rates are reviewed by the government every quarter and bank rates change with policy; market-linked schemes have no fixed rate at all. Enter the current rate for your scheme and revisit the result when rates change.






