The main differences between Bitcoin and Litecoin are their block generation times, proof-of-work algorithms and maximum coin supplies. The block generation time of Bitcoin is approximately 10 minutes whilst Litecoin’s block generation time is roughly 2.5 minutes. Bitcoin uses the SHA-256 algorithm whilst Litecoin uses Scrypt. Lastly, Bitcoin’s supply is limited to 21 million whilst Litecoin has a supply of 84 million.