How many calories are in a Reese's Peanut Butter Cups package?

Hershey's official US page lists 210 calories for one 42 g package.

Are US and Spanish KIT KAT products identical?

Not assumed. Each market keeps its own product, serving and official source.

The wrapper has receipts

Reese’s, Hershey’s and KIT KAT values from official US product pages—package size included, because “one bar” is not a unit of science.

Product and serving	Energy	Data type	Official source

Hershey manufactures or markets these US products. They stay separate from the Spanish Nestlé entry.

Some rows use a whole package; REESE’S PIECES uses 13 pieces. Read the serving before comparing.

Packaging changes. Every entry keeps the market and date when the official page was checked.

Why are two similar bars different?

Weight, coating, filling and recipe differ. The named product and exact serving are part of the data.

Does the exercise result recommend a workout?

No. It is playful math using a MET reference, not a prescription or compensation plan.