Miniature Snickers bars contain approximately 45 calories. Mars Incorporated, which produces Snickers products, does not offer a specific bite-size bar, but does manufacture the Snickers Miniatures candy, with each miniature possessing about 17 calories from fat.
The serving size for Snickers Miniatures on Snickers.com is four miniatures, which have a combined total of 170 calories, with 70 from fat. Another bite-size Snickers product is the Snickers Fun Size, which has roughly 80 calories per piece and 160 calories per serving size, which is two bars.
Two bars of Snickers Fun Size supply 70 calories from fat. The total fat content of 8 grams, with 3 grams from saturated fat and 0 grams of trans fat.