How many milligrams in one aspirin?

How many mg are in 1 aspirin tablet?

Most standard “regular strength” aspirin tablets contain 325 mg of aspirin per tablet.

What about “baby aspirin” or other strengths?

• Low-dose (“baby aspirin”) is commonly 81 mg per tablet.
  
• Some tablets are sold in other strengths (for example, 500 mg), but 325 mg and 81 mg are the most typical.
  
  

How to check the exact amount on your bottle

Look at the label under “Drug Facts” or “Each tablet contains.” The package will state the exact milligrams of aspirin per tablet (or chewable/effervescent form, if different).