How to Use Brexit Calculator
The Brexit Calculator offers four lightweight scenarios. Choose one, supply the inputs, and the Brexit Calculator displays comparable metrics in the chosen currency.
- Pick Scenario — Referendum, trade, exchange, or travel.
- Choose Currency — For monetary scenarios.
- Enter Inputs — Votes, trade volumes, prices, or trip costs.
- Read Outputs — Shares, tariffs, currency loss/gain, travel surcharge.
Formula & Theory - Brexit Calculator
The Brexit Calculator combines simple finance ratios:
Referendum
LeaveShare = Leave / (Leave + Remain) × 100%
RemainShare = Remain / (Leave + Remain) × 100%
Trade
ExportDuty = Exports × Tariff
ImportDuty = Imports × Tariff
Balance = Exports − Imports
Exchange (GBP → Target)
ValueBefore = Amount × RateBefore
ValueAfter = Amount × RateAfter
Change % = (RateAfter − RateBefore) / RateBefore × 100%
Travel
LocalCost = GBP Cost × FX Rate
ExtraDuty = GBP Cost × Duty %
TotalCost = GBP Cost + ExtraDuty| Symbol | Meaning |
|---|---|
| Tariff | Average duty / customs rate |
| FX Rate | GBP → target currency rate |
| Duty % | Roaming / VAT surcharge after Brexit |
Assumptions and Limits
The Brexit Calculator ignores second-order effects like supply chain shifts, inflation, and political risk premium. Treat results as ballpark estimates only.
Use Cases for Brexit Calculator
The Brexit Calculator is useful for:
- Classroom demos — Show how votes, tariffs, and FX cascade.
- Cost planning — Estimate post-Brexit price changes for goods or trips.
- Articles and blogs — Embed quick numbers in commentary pieces.
Run the Brexit Calculator before deeper modelling to set anchor numbers.