Change Radioactivity Units

Change radioactive-decay activity units separately from absorbed dose.

Choices for this device

Na only the units wey you choose this browser go remember. E no save numbers or other inputs. E go use them for new examples wey you open alone; shared links and workspace cards go keep their own choices.

Your numbers

Converted value

—

Activity na decays for each second, no be dose or health risk. This tool no convert to gray or sievert.

Formula

y = x × a ÷ b

x na di input, y na di converted value, a na di original-unit factor and b na di target-unit factor. Use di factors for di table below.

Unit conversion factors

Base unit: Bq

Unit	Base units for each listed unit
Bq	1
kBq	1,000
MBq	1,000,000
GBq	1,000,000,000
Ci	37,000,000,000
mCi	37,000,000
µCi	37,000

Change radioactive-decay activity units separately from absorbed dose.

Example wey show the calculation

Value to convert: 1
From unit: mCi
To unit: MBq

Converted value: 37 MBq
Value for base unit: 37,000,000 Bq

Where e fit work and limits

Activity na decays for each second, no be dose or health risk. This tool no convert to gray or sievert.

We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.

Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.

Version of di formula: 66f2a7bef664 · Example don get check: 2026-10-30

Method