How many mcg RAE is 1000 IU?

1000 IU of Vitamin A Retinol equals 300 mcg RAE. This is based on the conversion factor: 1 IU = 0.3 mcg RAE.

1000 IU to mcg RAE

Instant conversion with safety verification based on WHO/NIH standards.

1,000 IU=300 mcg RAE

Based on Vitamin A Retinol (1 IU = 0.3 mcg RAE)

Within the Tolerable Upper Intake Level (UL) of 3000 mcg RAE/day.

How We Calculate

The conversion between International Units (IU) and weight units (mcg RAE) depends on the specific substance. Each substance has a unique conversion factor defined by international pharmacological standards (WHO/NIH).

Step-by-step for Vitamin A Retinol

Identify the conversion factor: For Vitamin A Retinol, 1 IU = 0.3 mcg RAE.
Multiply: 1000 IU × 0.3 = 300 mcg RAE
Verify safety: Within the Tolerable Upper Intake Level (UL) of 3000 mcg RAE/day.

1,000 IU × 0.3 = 300 mcg RAE

Quick Reference Table

Common IU to mcg RAE conversions for Vitamin A Retinol. The current value is highlighted.

1,000 IU	2,500 IU	3,000 IU
300 mcg RAE	750 mcg RAE	900 mcg RAE

Related Conversions

5000 IU to mcg RAE

= 1,500 mcg RAE (Vitamin A Retinol)

10000 IU to mcg RAE

= 3,000 mcg RAE (Vitamin A Retinol)

25000 IU to mcg RAE

= 7,500 mcg RAE (Vitamin A Retinol)

Vitamin A Retinol Converter

Convert any IU value for Vitamin A Retinol

Conversion factors sourced from NIH Office of Dietary Supplements, WHO 2026. Always consult a healthcare professional before making dosage decisions.