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Harry Potter Currency Calculator

Quickly convert your wizarding stash into galleons, sickles, knuts, and Muggle money—handy before a trip to Diagon Alley.

The Daily Prophet once reported $7.35 per galleon—update to match your headcanon or conversion chart.

Converted Amount

Normalized wizarding total

2 galleons, 5 sickles, 12 knuts

1,143 knuts total

Muggle value

$17.04

At $7.35 per galleon

Reminder: Wizarding money doesn’t follow decimal currency. Always convert to total knuts for mixing denominations.

How to Use This Calculator

1

Count your coins

Enter how many galleons, sickles, and knuts you have. The calculator converts everything into a normalized amount.

2

Set the exchange rate

Choose your preferred conversion—canon, fan theory, or inflation-adjusted wizard economics.

3

Review totals

See your stash expressed as knuts, reconverted galleons/sickles/knuts, and Muggle currency.

Formula

Total Knuts = G * 493 + S * 29 + K

Muggle Value = (Total Knuts / 493) * Exchange Rate

Normalized Sickle = (Total Knuts mod 493) / 29

Normalized Knut = Total Knuts mod 29

Example: 2 G + 5 S + 12 K = 2 * 493 + 5 * 29 + 12 = 1222 knuts. Converted back = 2 G, 10 S, 12 K. At $7.35/galleon -> $18.22.

Currency Lore

Wizarding money mirrors medieval coin systems. Three denominations keep things simple—no paper money, just heavy jingling purses.

  • 1 galleon = 17 sickles = 493 knuts.
  • Gringotts handles exchange—goblins may offer different rates.
  • Hogwarts tuition? Over 10 galleons per month before book lists.
  • Weasleys stretch knuts—treat the exchange rate as a fun fan-canon exercise.

Frequently Asked Questions

Is the exchange rate canon?

J.K. Rowling once mentioned roughly £5 per galleon. Adjust to your own universe—inflate for 2020s or use fan economy charts.

Can I convert Muggle money to wizarding money?

Yes. Enter the converted galleons and set knuts/sickles to zero. Use the reverse math: Galleons = MuggleValue ÷ Exchange Rate.

What about banking fees?

Gringotts may take a cut. Add a percentage to your exchange rate to simulate goblin transaction fees.

Will this help me budget for Honeydukes?

Absolutely—input pocket money to plan which chocolate frogs and butterbeer rounds fit your allowance.