Understanding projected LISA value at 50 compared with age 60

[Summer210]

Help me to understand projected LISA values please.

I use AJ Bell Dodl. If I put my figures into their calculator (maximum contributions of £4000 for 17 years until I'm 50, with an estimated 5% interest average) it gives me a figure of around £117,500. That is just the projected value at the age of 50 isn't it? Or does it project for retirement age of 60?

If it were to continue earning 5% from age 50 to age 60 the final value (with compounding 5% annually) would be closer to £191,000+. That seems like a 'too good to be true' figure...thoughts?

If you put £117,500 into a calculator and multiply it by 1.05 10 times (or 1.05 ^ 10) you get £191,395. It’s just the power of compund interest.