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Bringing long-term investing to life

Investing can be easier to understand when you can see the numbers for yourself. This calculator is designed to help you explore how different amounts, time frames and approaches could have affected an investment in TEMIT over time.

A single investment can look very different depending on when you start, how much you invest and how long you stay invested. You can also compare the effect of investing a lump sum to building your investment gradually through monthly contributions.

Investment Growth Calculator

Find out what your TEMIT investment could be worth today

TEMIT launched in June 1989. Enter your own figures and date range to explore different outcomes.

Selected Month June 1989
Selected Month February 2026

Portfolio value over time

Line chart with 2 lines.
The chart has 1 X axis displaying Time. Data ranges from 1989-07-31 00:00:00 to 2026-02-28 00:00:00.
The chart has 1 Y axis displaying values. Data ranges from 19220.286983 to 1459214.244755.
End of interactive chart.

The value of your investment would be:

£1,459,214

Past performance is not an indicator of future returns. Figures shown are for illustrative purpose only.

The value of your investments may go down as well as up and you could get back less than invested. Month end values used.

Initial sum invested

£20,000

Total invested

£20,000

What the calculator can show you

  • The power of time - explore how staying invested over longer periods can change the outcome.
  • Different amounts - try different starting figures and see how the result changes.
  • Different starting dates - see how timing can affect long-term growth.
  • Lump sum or monthly investing - compare investing all at once with building up an investment over time.

The £1 million challenge

Now put the calculator to the test.  TEMIT has achieved the Association of Investment Companies’ ISA Millionaire status, reflecting the high value of long-term returns delivered through an ISA.  Use the calculator to explore what it might have taken to reach £1 million.

  • Could £100 a month have grown to £1 million? How long might that have taken?
  • What monthly investment could have achieved that even sooner?
  • What is the smallest lump sum and shortest time to reach £1 million that you can uncover?

 Start your journey today. It’s easy.

Invest in TEMIT through all the major investment platforms today. You could be just a few clicks away for starting your investment journey with TEMIT.

How to Invest with Us

Shares in TEMIT qualify as an investment which can be held through an ISA. TEMIT is available through a stocks and shares ISA from a number of different companies. Your financial adviser will be able to give you full details of the options available to you.