How Many Cards Are in Solitaire?

Short Answer
Standard Klondike Solitaire uses 52 cards - one complete deck without jokers. The deck contains 4 suits (Hearts, Diamonds, Clubs, Spades) with 13 cards each (Ace through King).

Card Distribution at Start

When you deal a game of Klondike Solitaire:

Math Check

28 (tableau) + 24 (stock) = 52 total cards. When you win, all 52 cards end up on the 4 foundation piles (13 cards each).

Variants Using Different Card Counts

Not all Solitaire games use a single deck: