Since the original repo wasn't being maintained, I forked it, merged the waiting pull requests and added fixes & features of my own. This is it.

A simple Alfred 2 Currency Converter workflow's.

• Download Currency Converter.alfredworkflow extension.
• Double click the downloaded "Currency Converter.alfredworkflow" file to install. Alfred 2 is required

• currency <query>

Currency Converter accepts simple and complex queries. Important: all output results are fetched from Google Finance and might not be in real-time!

• currency € -- Current EUR/USD exchange
• currency € £ -- Current EUR/GBP exchange

• currency 12 € -- Convert 12 EUR to USD
• currency 12€ £ -- Convert 12 EUR to GBP
• currency 12 € £ -- Convert 12 EUR to GBP

• currency 12 EUR £ -- Convert 12 EUR to GBP

• currency 12 EUR to £ -- Convert 12 EUR to GBP
• currency from 12 € to GBP -- Convert 12 EUR to GBP
• currency to GBP from 3€ -- Convert 3 EUR to GBP
• currency to GBP 3€ -- Convert 3 EUR to GBP

...and many other combinations!

• currency-set-from <query>

Set a new default currency input

• currency-set-to <query>

Set a new default currency out

• currency-help

Keep updated and read the latest news

You can change the default currency typing currency-set-from or currency-set-to

Full list of currency supported:

• USD (US Dollar)
• EUR (Euro)
• JPY (Japanese Yen)
• GBP (British Pound Sterling)
• CHF (Swiss Franc)
• AUD (Australian Dollar)
• CAD (Canadian Dollar)
• SEK (Swedish Krona)
• HKD (Hong Kong Dollar)
• NOK (Norwegian Krone)
• BTC (Bitcoin) using btcrate.com
• AED (United Arab Emirates Dirham)
• ANG (Netherlands Antillean Guilder)
• ARS (Argentine Peso)
• BDT (Bangladeshi Taka)
• BGN (Bulgarian Lev)
• BHD (Bahraini Dinar)
• BND (Brunei Dollar)
• BOB (Bolivian Boliviano)
• BRL (Brazilian Real)
• BWP (Botswanan Pula)
• CLP (Chilean Peso)
• CNY (Chinese Yuan)
• COP (Colombian Peso)
• CRC (Costa Rican Colón)
• CZK (Czech Republic Koruna)
• DKK (Danish Krone)
• DOP (Dominican Peso)
• DZD (Algerian Dinar)
• EEK (Estonian Kroon)
• EGP (Egyptian Pound)
• FJD (Fijian Dollar)
• HNL (Honduran Lempira)
• HRK (Croatian Kuna)
• HUF (Hungarian Forint)
• IDR (Indonesian Rupiah)
• ILS (Israeli New Sheqel)
• INR (Indian Rupee)
• JMD (Jamaican Dollar)
• JOD (Jordanian Dinar)
• KES (Kenyan Shilling)
• KRW (South Korean Won)
• KWD (Kuwaiti Dinar)
• KYD (Cayman Islands Dollar)
• KZT (Kazakhstani Tenge)
• LBP (Lebanese Pound)
• LKR (Sri Lankan Rupee)
• LTL (Lithuanian Litas)
• LVL (Latvian Lats)
• MAD (Moroccan Dirham)
• MDL (Moldovan Leu)
• MKD (Macedonian Denar)
• MUR (Mauritian Rupee)
• MVR (Maldivian Rufiyaa)
• MXN (Mexican Peso)
• MYR (Malaysian Ringgit)
• NAD (Namibian Dollar)
• NGN (Nigerian Naira)
• NIO (Nicaraguan Córdoba)
• NPR (Nepalese Rupee)
• NZD (New Zealand Dollar)
• OMR (Omani Rial)
• PEN (Peruvian Nuevo Sol)
• PGK (Papua New Guinean Kina)
• PHP (Philippine Peso)
• PKR (Pakistani Rupee)
• PLN (Polish Zloty)
• PYG (Paraguayan Guarani)
• QAR (Qatari Rial)
• RON (Romanian Leu)
• RSD (Serbian Dinar)
• RUB (Russian Ruble)
• SAR (Saudi Riyal)
• SCR (Seychellois Rupee)
• SGD (Singapore Dollar)
• SKK (Slovak Koruna)
• SLL (Sierra Leonean Leone)
• SVC (Salvadoran Colón)
• THB (Thai Baht)
• TND (Tunisian Dinar)
• TRY (Turkish Lira)
• TTD (Trinidad and Tobago Dollar)
• TWD (New Taiwan Dollar)
• TZS (Tanzanian Shilling)
• UAH (Ukrainian Hryvnia)
• UGX (Ugandan Shilling)
• UYU (Uruguayan Peso)
• UZS (Uzbekistan Som)
• VEF (Venezuelan Bolívar)
• VND (Vietnamese Dong)
• XOF (CFA Franc BCEAO)
• YER (Yemeni Rial)
• ZAR (South African Rand)
• ZMK (Zambian Kwacha'