Megagray to Femtogray Conversion

Convert between Megagray and Femtogray quickly and accurately.

MGy
fGy

How to Convert Megagray to Femtogray

Conversion Formula

1 MGy = 1E+21 fGy
1 fGy = 1E-21 MGy

Example

Convert 15 MGy to fGy:

15 MGy = 15 × 1E+21 fGy = 2E+22 fGy

Unit Information

Learn about the radiation absorbed dose units you're converting between

Megagray

MGy

Definition

A unit of absorbed radiation dose equal to 10^6 gray, used for moderate to high absorbed dose measurements.

History/Origin

Part of the SI metric system, where mega- is the prefix for 10^6, used for large quantities.

Current Use

Used in radiation therapy, medical physics, and high-dose radiation applications.

Multiplier

100000000

Offset

0

Femtogray

fGy

Definition

A unit of absorbed radiation dose equal to 10^-15 gray, used for ultra-small absorbed dose measurements.

History/Origin

Part of the SI metric system, where femto- is the prefix for 10^-15, used for ultra-small quantities.

Current Use

Used in radiation protection, environmental monitoring, and ultra-small-dose radiation measurements.

Multiplier

1E-13

Offset

0

Megagray to Femtogray Conversion Table

Megagray [MGy] Femtogray [fGy]
1 MGy 1E+21 fGy
10 MGy 1E+22 fGy
25 MGy 2E+22 fGy
50 MGy 5E+22 fGy
100 MGy 1E+23 fGy
0 MGy 0E+0 fGy
-10 MGy -1E+22 fGy
-40 MGy -4E+22 fGy