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How much do you need to reach your goal?

Savings and investments calculator | castra

Know your number.

Increase my contribution each year

A common way to model pay rises: the monthly amount above rises by this percentage every 12 months.

yrs

Example rates for illustration only. Not a forecast or recommendation of actual returns.

Platform and fund charges reduce your effective growth rate. A typical range is 0.25%–1% a year; check your own provider's figure.

Add one-off deposits or withdrawals
Show in today's money

Assumes 2.5% a year inflation, a commonly used long-term planning assumption, and shows what the projection would be worth in today's purchasing power.

Projected value
£0
This is an illustration, not a forecast. It is not personalised advice, and the value of investments can fall as well as rise, and you may get back less than you invest.
What you put in Growth Simulated range (P10–P90)

Figures are not adjusted for tax. Charges are modelled at the rate you set above (0% by default). Hover or touch the chart to read off a value at any year. The dashed lines are a 10th-to-90th percentile band from a simplified simulation around your growth rate, illustrating uncertainty; it is not built from real historical market data and is not a probability forecast.
Total put in
£0
Growth added
£0

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