Radiation Converter
Instantly convert radiation with our free converter. See conversion tables, formulas, and step-by-step explanations. Enter your values for instant results.
Formula
Converted = Input x (From Unit Base Factor) / (To Unit Base Factor)
Radiation units are converted through their SI base unit. For absorbed dose: 1 Gy = 100 rad. For equivalent dose: 1 Sv = 100 rem. For exposure: 1 R = 2.58e-4 C/kg. Multiply the input by its conversion factor to the base unit, then divide by the target unit factor.
Worked Examples
Example 1: Converting Gray to Rad
Problem: A radiation therapy session delivers 2 Gray. Convert to rad and milligray.
Solution: Rad = Gray / 0.01 = 2 / 0.01 = 200 rad\nMilligray = Gray x 1000 = 2 x 1000 = 2,000 mGy\nMicrogray = Gray x 1,000,000 = 2,000,000 uGy
Result: 2 Gy = 200 rad = 2,000 mGy = 2,000,000 uGy
Example 2: Millisievert to Millirem
Problem: A worker receives 5 millisieverts of exposure. Convert to millirem and microsieverts.
Solution: Sievert = 5 x 0.001 = 0.005 Sv\nRem = 0.005 / 0.01 = 0.5 rem\nMillirem = 0.5 x 1000 = 500 mrem\nMicrosievert = 5 x 1000 = 5,000 uSv
Result: 5 mSv = 500 mrem = 0.5 rem = 5,000 uSv
Frequently Asked Questions
What are safe radiation dose limits?
For the general public, the recommended annual dose limit is 1 millisievert (100 millirem) above natural background radiation, which averages about 2.4 mSv per year globally. Radiation workers are limited to 20 mSv per year averaged over five years, with no single year exceeding 50 mSv. For context, a chest X-ray delivers about 0.02 mSv, a CT scan delivers 2-10 mSv, and a transcontinental flight adds about 0.04 mSv. Acute doses above 1 Sv cause radiation sickness, and doses above 5 Sv are often fatal.
What formula does Radiation Converter use?
The formula used is described in the Formula section on this page. It is based on widely accepted standards in the relevant field. If you need a specific reference or citation, the References section provides links to authoritative sources.
Can I use the results for professional or academic purposes?
You may use the results for reference and educational purposes. For professional reports, academic papers, or critical decisions, we recommend verifying outputs against peer-reviewed sources or consulting a qualified expert in the relevant field.
Is Radiation Converter free to use?
Yes, completely free with no sign-up required. All calculators on NovaCalculator are free to use without registration, subscription, or payment.
How do I get the most accurate result?
Enter values as precisely as possible using the correct units for each field. Check that you have selected the right unit (e.g. kilograms vs pounds, meters vs feet) before calculating. Rounding inputs early can reduce output precision.
Can I share or bookmark my calculation?
You can bookmark the calculator page in your browser. Many calculators also display a shareable result summary you can copy. The page URL stays the same so returning to it will bring you back to the same tool.