Extreme Growth Calculator
What happens when you double your savings every single period? Spoiler: the numbers go completely off the charts.
Looking for a realistic savings plan?
Try the Step-Up Savings Calculator — it models the 1p daily challenge and other achievable savings goals.
Quick Presets
e.g. 0.01 = 1p
Max 60 periods
Your Results
Total Saved
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Final Payment
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Periods
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Growth Curve
Cumulative total across all periods
Period Breakdown
| Period | You Save | Total So Far | Progress |
|---|
Enter your settings above to see your savings explode
How extreme doubling growth works
Each period you save double the amount from the previous period. Start with 1p → 2p → 4p → 8p → 16p…
By period 10 you're saving £5.12 that day. By period 20 it's £5,242. By period 30 it's over £5 million — in a single day.
This is exponential growth — the same principle behind compound interest, just accelerated to an absurd degree. It's a fascinating maths demonstration, not a savings plan!
The formula
Period N = Start × 2(N-1)
Total = Start × (2N − 1)