Convert 1 Headache to Gigagray

1 Headache is equal to 0.000000002 GGy (Gigagray). To convert from Headache to Gigagray, multiply by 0.000000002 or divide by 499,999,999.99999994.

• 1 Headache × 2.0E-9 = 2.0E-9 GGy
• 1 Headache ÷ 500000000 = 2.0E-9 GGy