Blood Donation Due Date Calculator
Calculate when you can donate blood again based on your last donation date
Calculate Next Donation Date
Select the date of your last blood donation
Donation Status
⚠️ Health Disclaimer: This calculator provides estimated dates based on standard waiting periods. Always verify your eligibility with blood donation centers, as individual health conditions may affect donation eligibility.
Example Calculation
Male Donor Example
Last donation: March 1, 2025
Waiting period: 12 weeks (84 days)
Calculation: March 1 + 84 days
Next donation date: May 24, 2025
Female Donor Example
Last donation: March 1, 2025
Waiting period: 16 weeks (112 days)
Calculation: March 1 + 112 days
Next donation date: June 21, 2025
Your Donation Impact
1 Donation
Can save up to 3 lives
Volume
450ml (1 pint) of whole blood
Recovery
Blood volume restored in 24-48 hours
Annual Impact
Regular donors save 9+ lives per year
Waiting Periods
Males: 12 weeks
About 3 months
Females: 16 weeks
About 4 months
Platelets: 7 days
Different donation type
Plasma: 28 days
Different donation type
Blood Donation Eligibility & Information
Basic Eligibility Requirements
- •Age: 18-65 years old (varies by country)
- •Weight: More than 50kg (110 lbs)
- •Hemoglobin: >12.0 g/dL (females), >13.0 g/dL (males)
- •Heart Rate: 50-100 bpm, regular rhythm
- •Blood Pressure: 100-180/50-100 mmHg
- •Temperature: Normal, ≤37.5°C oral
Health Benefits of Donating
- ✓May lower blood pressure
- ✓Reduces risk of heart attacks
- ✓Free health screening
- ✓Sense of community contribution
Exclusions & Deferrals
Temporary Deferrals
- • Cold or flu (7 days after recovery)
- • Recent vaccinations
- • Taking antibiotics
- • Recent tattoos or piercings
- • Pregnancy
Permanent Deferrals
- • Blood-borne diseases (HIV, Hepatitis B/C)
- • Certain chronic conditions
- • High-risk medications
- • Certain travel history
Donation Process
- 1.Registration: Complete paperwork
- 2.Mini-Physical: Health screening
- 3.Donation: 8-10 minutes
- 4.Refreshments: Rest and recover
Frequently Asked Questions
How much blood is donated at once?
A typical donation is one US pint (450 ml) of whole blood, which is about 8% of the average adult's blood volume.
How quickly does the body recover?
The body replaces the donated blood volume within 24 to 48 hours and replenishes the lost red blood cells in 10 to 12 weeks.
Do I need a medical certificate to donate?
No medical certificate is required, but you must undergo a physical examination and blood test at the donation center.
Can I donate if I have a cold or flu?
You can donate blood 7 days after you've fully recovered from your symptoms.
Is donating blood healthy?
Yes! While some people may feel temporarily dizzy, donating blood doesn't cause health damage and may even provide cardiovascular benefits.