Lumpsum Calculator – One-Time Investment Growth

A Lumpsum Calculator estimates the future value of a one-time investment over a chosen period, based on an expected annual return rate and compounding.

Use it when you plan to invest a single amount (e.g., inheritance, bonus, savings) and want to estimate how it might grow over years with compounding.

No — this calculator gives a pre-tax projection based on the return rate you enter. Taxes, fees, and fund charges are not modelled and will affect real returns.

The tool assumes annual compounding for lumpsum growth. If you need different compounding frequency, adjust the expected return accordingly or request a tailored version.

No — results are projections based on the expected return input. Market returns vary and past performance is not a guarantee of future returns.

They’re estimates to help planning. Use realistic return assumptions and consider tax/fees for more accurate net outcomes.

No — tax, charges and inflation are not included. These will reduce the net realized return.

Choose a conservative estimate based on the investment type: equities historically higher long-term, debt lower and more stable.

This basic tool assumes annual compounding; for different frequencies, adjust the rate or ask for a version with frequency control.

No — to see real purchasing power, subtract expected inflation from nominal returns to get inflation-adjusted figures.

No — these are projections only. Use them for planning and not as investment advice.

Not in this basic version. If you need CSV/PDF export, I can add an export feature for your site.