Use our free Blood Donation Due Date Calculator to quickly find your next eligible date for whole blood, platelets, plasma, or double red cell donations. Plan your lifesaving contributions accurately and help save lives!
Formula:
Next Due Date = Last Donation Date + Minimum Waiting Period
Where the Minimum Waiting Period depends on the donation type:
- Whole Blood: 56 days
- Double Red Cells: 112 days
- Platelets (Apheresis): 7 days (Note: Maximum 24 donations/year)
- Plasma (Apheresis): 28 days (Note: Often allowed more frequently, up to twice in 7 days, but 28 days is a common interval for full recovery consideration)