How often can I donate whole blood?
What this means
- The standard interval is 56 days.
- That works out to a maximum of about six donations a year.
- Watch your iron if you donate at the maximum pace.
What to do next
Set a reminder for 56 days after your last whole blood donation.
When to call the center: Call if you have had iron trouble at the maximum pace.
Why this rule exists
Your body needs about eight weeks to fully replace red cells.
This is general educational guidance, not a final eligibility decision. Donation centers make final eligibility decisions during confidential screening. Rules may vary by center, donation type, location, and current policy.
Find a place to donate
Search by city, ZIP, state, or center name, or use your location to see the closest centers.
Related questions
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Read the full pledgeSources and review
The guidance on this page reflects published criteria from these organizations. Eligibility and procedures vary by center and country, so confirm specifics with your donation center.
- American Red Cross
- AABB (Association for the Advancement of Blood & Biotherapies)
- U.S. Food and Drug Administration, Blood Donation
- Canadian Blood Services
- Last reviewed:
- Next review due:
- Reviewed by:
- Reviewed against American Red Cross, AABB, and U.S. FDA donor guidance
- Confidence:
- High confidence