# Hemoglobin Unit Converter (g/dL ↔ mmol/L ↔ g/L)

Convert hemoglobin between g/dL, g/L, and mmol/L. Factor 0.6206 (g/dL→mmol/L, IFCC/IUPAC monomer, 16.1145 g/mmol); × 10 for g/L. Derived from WHO 2011, IFCC/IUPAC, Young 1987, StatPearls. Not medical advice.

> Canonical page: https://elysiatools.com/en/tools/hemoglobin-unit-converter

- **Category:** Health

- **Keywords:** hemoglobin converter, hemoglobin unit, hb, hgb, g dl, g l, mmol l, anemia, polycythemia, hematology, si units, lab medicine

## Overview

Convert hemoglobin values between g/dL, g/L, and mmol/L using the IFCC/IUPAC factor of 0.6206 for g/dL to mmol/L and a factor of 10 for g/dL to g/L. Choose the source and target units, set decimal places, and receive the converted value as JSON.

## Inputs

- **Value** (number): The hemoglobin value to convert.
- **Source Unit** (select): The unit of the input value.
- **Target Unit** (select): The unit to convert into.
- **Decimal Places** (number)

## When to use

- Convert a laboratory hemoglobin result from g/dL to mmol/L for SI-unit reporting.
- Translate g/L or mmol/L values into g/dL for comparison with another report.
- Standardize hemoglobin values while controlling the number of displayed decimal places.

## How it works

- Enter the hemoglobin value in the Value field.
- Select the input unit: g/dL, g/L, or mmol/L.
- Select the target unit and optionally choose between 0 and 8 decimal places.
- The tool applies the supported conversion factor and returns the result in JSON.

## Use cases

- Laboratory and hematology workflows that require consistent hemoglobin units.
- Clinical education and reference work involving g/dL, g/L, and mmol/L values.
- Checking converted results when comparing reports that use different unit systems.

## Frequently asked questions

### Which hemoglobin units does the converter support?

It converts between g/dL, g/L, and mmol/L.

### What factor converts g/dL to mmol/L?

The converter uses 0.6206: mmol/L = g/dL × 0.6206.

### How do I convert g/dL to g/L?

Multiply the g/dL value by 10.

### Can I control the displayed precision?

Yes. Set Decimal Places from 0 to 8; the default is 2.

### Is this converter medical advice?

No. It performs unit conversions only and is not medical advice.

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