Use this calculator when you want the present-value equivalent of a future amount under a chosen discount rate.
Inputs
This topic also has a deeper guide and a printable reference pack, so you can move from the live answer into the method, assumptions, and worked examples without leaving the topic cluster.
A practical guide to simple interest, compound growth, present value, future value, and CAGR that explains why money in different time positions cannot be compared honestly until time and compounding are made explicit.
A practical guide to loans and mortgages that explains amortisation, payment structure, interest allocation, and the trade-off between payment size, total interest, and repayment speed.
These are the main values the calculator uses. Keep the units consistent and, where relevant, match the assumptions explained in the related guide.
Unit: GBP
Use the amount you expect or want to compare in future terms.
Unit: %
Enter the discount or growth rate used to bring the amount back to the present.
Unit: years
Set the number of years between today and the future amount.
Use this page when a future amount sounds meaningful on its own but still needs to be compared in present-day terms.
The main result is the discounted present value. The supporting figure shows the difference between the future amount and the discounted value.
If a future amount is 10,000 in 8 years and the discount rate is 6%, the calculator shows the smaller present amount that would be equivalent under those assumptions.
This page applies the rate and time period you enter only. It does not decide the correct discount rate for an investment, project, or lending context.
Because the calculation discounts the future amount back through time at the rate you entered. The more time or discount rate involved, the lower the present value becomes.
Calculate what a present amount grows to after the annual rate and time period you enter are applied.
Project compounded growth from a starting balance, contribution schedule, rate, and compounding frequency using only the values you enter.
Calculate a fixed-payment loan from the amount borrowed, rate, and term, using only the values you enter.
Estimate a standard repayment mortgage from property price, deposit, rate, and term with clear monthly costs and supporting figures.