Logic Building/Phase 6 - Category 5: Real-World Logic Problems/Program

Simple Currency Converter

Convert between currencies with exchange rates.

Logic BuildingIntermediate

Logic Building

# Exchange rates (example)
rates = {
    'USD': 1.0,
    'EUR': 0.85,
    'GBP': 0.73,
    'INR': 82.5
}

# Take inputs
amount = float(input("Enter amount: "))
from_currency = input("From currency (USD/EUR/GBP/INR): ").upper()
to_currency = input("To currency (USD/EUR/GBP/INR): ").upper()

# Convert
if from_currency in rates and to_currency in rates:
    # Convert to USD first, then to target
    usd_amount = amount / rates[from_currency]
    converted = usd_amount * rates[to_currency]
    print(f"{amount} {from_currency} = {converted:.2f} {to_currency}")
else:
    print("Invalid currency")

Output

Enter amount: 100
From currency (USD/EUR/GBP/INR): USD
To currency (USD/EUR/GBP/INR): INR
100.0 USD = 8250.00 INR

Convert using exchange rates.

Key Concepts:

Convert to base currency (USD)
Then convert to target currency
Use exchange rates

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