# Radiation Equivalent Dose Converter (Sv / rem)

Convert radiation equivalent dose between Sv (sievert, SI base), mSv (1 = 0.001 Sv), µSv (1 = 1e-6 Sv), rem (1 = 0.01 Sv), and mrem (1 = 1e-5 Sv). Converts via Sv to the target unit and lists the equivalent value in all five units. ⚠️ Equivalent dose is NOT absorbed dose: equivalent dose = absorbed dose (Gy) × radiation weighting factor w_R (X/γ/β = 1, neutrons 5–20, alpha 20). Converting Sv → Gy requires dividing by w_R — use the absorbed-dose converter for that side. Reference values: natural background ≈ 3 mSv/yr, chest CT ≈ 7 mSv, annual occupational limit ≈ 50 mSv/yr, ARS threshold ≈ 1 Sv.

> Canonical page: https://elysiatools.com/en/tools/radiation-dose-equivalent-converter

- **Category:** Math & Numbers

- **Keywords:** equivalent dose, radiation dose conversion, sievert, Sv, rem, mSv, µSv, mrem, ionizing radiation, radiation protection, radiological

## Overview

Convert non-negative radiation equivalent dose values between Sv, mSv, µSv, rem, and mrem. Enter a value, choose the input and output units, set the decimal places, and receive the converted result plus equivalent values in all five units.

## Inputs

- **Input unit** (select)
- **Value** (number): Equivalent dose in the selected Input unit. Must be non-negative.
- **Output unit** (select)
- **Decimal Places** (number)

## When to use

- Convert clinical or environmental reference values between sieverts and rem-based units.
- Compare measurements recorded in Sv, mSv, µSv, rem, or mrem.
- Check radiation equivalent dose calculations without manually applying unit factors.

## How it works

- Enter a non-negative equivalent dose value.
- Select the input unit and the unit for the main output.
- Choose the number of decimal places from 0 to 10.
- The converter calculates through Sv and returns the selected result with equivalents in Sv, mSv, µSv, rem, and mrem.

## Use cases

- Radiation protection teams can compare dose records reported in SI and rem-based units.
- Students and educators can verify conversions for radiation science examples.
- Analysts can standardize environmental, medical, or occupational reference values before comparison.

## Frequently asked questions

### Which units does this converter support?

It supports Sv, mSv, µSv, rem, and mrem.

### What value should I enter?

Enter a non-negative equivalent dose in the selected input unit.

### Does the result include all supported units?

Yes. The JSON result lists equivalent values in all five supported units.

### Can this converter convert Sv to Gy?

No. Sv is equivalent dose, while Gy is absorbed dose. Converting between them requires a radiation weighting factor.

### How precise is the displayed result?

You can choose between 0 and 10 decimal places.

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