Inflation sandbox
If prices rise like this,
what does chicken cost?
Set your own annual rate. This is a sandbox — not a forecast, not an official statistic, and not a live price index.
Your assumptions
Allowed range -20% to 50%. A negative rate assumes prices fall.
The n in the formula is in years. To work in days, convert with n = days ÷ 365 — which is itself an assumption.
future price = current price × (1 + i)^n
pay to keep up = current pay × (1 + i)^n
i = 0.030 (3% / year), n = 5 → ×1.1593
Prices in 5 years (assumed)
| Item | Now | In 5 years | Change |
|---|---|---|---|
| Chicken shop box (8 pieces)Assumption, for fun | £15 | £17.39 | +£2.39 |
| Supermarket meal dealAssumption, for fun | £4 | £4.64 | +£0.64 |
| Fish and chipsAssumption, for fun | £10.5 | £12.17 | +£1.67 |
| Flat whiteAssumption, for fun | £3.6 | £4.17 | +£0.57 |
| Cinema ticketAssumption, for fun | £12 | £13.91 | +£1.91 |
| Netflix Standard (month)Assumption, for fun | £12.99 | £15.06 | +£2.07 |
The same rate is applied to every item, which is a simplification — in reality prices move at different speeds. No historical price series is used, so no past values appear in this table.
To keep the same purchasing power
This is a plain conversion. It does not account for pay rises, promotions or changing jobs, and it is not advice about investments or financial products.