Where Your Money Grows Faster
Powerful tools to plan, grow, and maximise your wealth — all in one place.
Free • No sign-up • Instant results
Compound Interest Calculator
See how small monthly contributions can turn into substantial long-term wealth.
Financial calculators that make planning easier
Compound Interest Calculator
Estimate how your money grows with regular contributions and annual returns.
ISA Calculator
Estimate tax-free investment growth using your annual ISA allowance.
Investment Growth Calculator
Project future investment value using starting capital, monthly additions and time.
Savings Calculator
Visualise how consistent saving and interest can build security and flexibility.
Millionaire Calculator
Work backwards from a £1,000,000 target and see what it might take.
Simple scenarios to inspire action
£100/month for 10 years
A small monthly investment can build confidence, habit and long-term momentum.
£500/month for 20 years
Consistency over time can create a substantial portfolio even without huge lump sums.
£1,000/month for 25 years
High contribution rates plus time can put seven-figure wealth in play.
Built for long-term financial growth
CompoundLab is designed to help you plan, track and optimise your financial future — from saving your first £1,000 to building long-term wealth.
- Free to use
- No sign-up required
- Built for UK investors
Learn while you calculate
CompoundLab is designed to combine interactive calculators with beginner-friendly articles that answer common investing and saving questions.
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