Oxygen Content (CaO₂)
Arterial oxygen content from Hb, SaO₂, and PaO₂.
What this calculator does
This tool estimates the amount of oxygen carried in arterial blood (CaO₂) from your hemoglobin, oxygen saturation, and arterial oxygen pressure. It reflects how much oxygen the blood can deliver to tissues.
What your result means
The result is in mL of oxygen per decilitre of blood. It is used in clinical and critical care settings. Your doctor will explain what the value means in your situation.
This is not medical advice. A healthcare provider should interpret results in your context.
Hemoglobin (g/dL)
SaO₂ (%)
PaO₂ (mmHg)
Key terms
- CaO₂
- Arterial oxygen content; amount of oxygen carried in arterial blood (mL O₂ per dL blood).
- SaO₂
- Arterial oxygen saturation; percentage of hemoglobin carrying oxygen.
- Hemoglobin
- Protein in red blood cells that carries oxygen (g/dL).
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This tool is for educational and reference use only. It does not constitute medical advice. Always consult a healthcare professional for medical decisions.