MEDICALRadiologyHealth Calculator
🏥

Radiation Dose

SI unit of absorbed dose (J/kg)

Did our AI summary help? Let us know.

Evidence-based calculations Used in clinical settings worldwide Regular monitoring recommended

Ready to run the numbers?

Why: This calculation helps assess important health parameters for clinical and personal wellness tracking.

How: Enter your values above and the calculator will apply validated formulas to compute your results.

Evidence-based calculationsUsed in clinical settings worldwide
Sources:Medical LiteratureWHO Guidelines

Run the calculator when you are ready.

Understanding Radiation DoseUse the calculator below to check your health metrics

🏥 CT Scan Dose Conversion

Convert typical CT abdomen dose from mGy to mSv for X-rays

Click to load

👷 Occupational Exposure Check

Convert annual occupational dose from rem to mSv

Click to load

☢️ Alpha Particle Exposure

Calculate equivalent dose from alpha particle absorbed dose

Click to load

⚛️ Proton Therapy Dose

Calculate biological dose for proton beam therapy

Click to load

🔬 Neutron Exposure

Calculate dose from fast neutron exposure

Click to load

Sample Conversion Scenarios

🏥 CT Scan Dose Conversion

Convert typical CT abdomen dose from mGy to mSv for X-rays

Click to load this scenario

👷 Occupational Exposure Check

Convert annual occupational dose from rem to mSv

Click to load this scenario

☢️ Alpha Particle Exposure

Calculate equivalent dose from alpha particle absorbed dose

Click to load this scenario

⚛️ Proton Therapy Dose

Calculate biological dose for proton beam therapy

Click to load this scenario

🔬 Neutron Exposure

Calculate dose from fast neutron exposure

Click to load this scenario

Enter Dose Parameters

Dose Values

The radiation dose value to convert
Unit of the input dose
Desired output unit

Radiation Parameters

Type of ionizing radiation
Use automatic or custom quality factor
Custom quality factor value

Tissue Parameters

Tissue for effective dose calculation

For informational purposes only — not medical advice. Consult a healthcare professional before acting on results.

🏥 Health Facts

— WHO

— CDC

What is Radiation Dose?

Radiation dose quantifies the amount of ionizing radiation absorbed by matter. Different types of doses are used depending on the context: absorbed dose measures energy deposited, equivalent dose accounts for radiation type, and effective dose considers organ sensitivity.

Absorbed Dose

Energy deposited per unit mass. Measured in Gray (Gy) or rad. Physical quantity independent of radiation type.

Units:

1 Gy = 100 rad = 1 J/kg

Equivalent Dose

Absorbed dose weighted by radiation quality factor. Accounts for biological effectiveness of different radiation types.

Units:

1 Sv = 100 rem = Gy × Q

Effective Dose

Sum of equivalent doses weighted by tissue sensitivity. Represents total body risk from partial body exposure.

Formula:

E = Σ(H × wT) in Sv

How Does the Radiation Dose Calculator Work?

This calculator converts between different radiation dose units and calculates equivalent and effective doses using quality factors and tissue weighting factors from ICRP recommendations.

☢️ Calculation Process

Step-by-Step

  1. 1Enter dose value and select input unit
  2. 2Select radiation type for quality factor
  3. 3Choose tissue type for effective dose
  4. 4Calculator applies conversion factors

Key Concepts

  • Quality Factor (Q): Higher for alpha, neutrons
  • Tissue Weighting (wT): Organ sensitivity
  • SI Units: Gray and Sievert preferred
  • ICRP 103 weighting factors used

When to Use the Radiation Dose Calculator

This calculator is essential for radiation safety officers, medical physicists, radiologists, and anyone working with ionizing radiation who needs to convert between dose units or calculate biological effects.

Medical Physics

Convert CT doses, calculate patient exposures, and compare doses across different imaging modalities.

Occupational Safety

Track worker exposures, ensure compliance with dose limits, and convert between monitoring units.

Research Applications

Compare doses in literature using different units, plan experiments, and assess biological effects.

Radiation Dose Formulas and Conversions

Core Formulas

Unit Conversions

1 Gy = 100 rad = 1 J/kg
1 Sv = 100 rem

Equivalent Dose

H (Sv) = D (Gy) × Q

Q = Quality Factor (radiation weighting factor)

Effective Dose

E = Σ (HT × wT)

wT = Tissue weighting factor (ICRP 103)

👈 START HERE
⬅️Jump in and explore the concept!
AI

Related Calculators

Medical Radiation Calculator - Imaging Dose Estimator

Estimate radiation exposure from medical imaging procedures including CT scans, X-rays, PET scans, and nuclear medicine. Track cumulative dose and compare to...

Health

BED Calculator - Biologically Effective Dose

Calculate Biologically Effective Dose (BED) and Equivalent Dose in 2 Gy fractions (EQD2) for radiation therapy planning. Compare different fractionation...

Health

TI-RADS Calculator - Thyroid Nodule Classification

ACR Thyroid Imaging Reporting and Data System (TI-RADS) calculator for standardized thyroid nodule risk stratification. Calculate scores based on ultrasound...

Health

A-a Gradient Calculator

Calculate the Alveolar-arterial (A-a) oxygen gradient to assess oxygenation efficiency. Helps differentiate between pulmonary and extrapulmonary causes of...

Health

Advanced ABI Calculator (Ankle-Brachial Index)

Comprehensive Ankle-Brachial Index calculator with multiple measurement methods, advanced PAD risk assessment, exercise testing capability, cardiovascular...

Health

ABSI Calculator (A Body Shape Index)

Calculate your A Body Shape Index (ABSI) to assess health risks and mortality prediction based on waist circumference, height, and weight. Get personalized...

Health