Embed

Embed the PaO2/FiO2 Ratio Calculator (PF Ratio)

Three quick steps — customize the look, choose how it behaves, then copy the code onto your site.

Name

Your reference only — not shown to visitors

Heading

Shown to visitors above the calculator, in every display mode. Leave blank for none.

Subheading

Optional supporting text shown just below the heading.

Theme

Accent / section color

Colors the calculator's own section bars and highlights — the whole calculator's look, not just the results panel.

#FF5C00

Background color

#FFFFFF

Results text color

#0A0C0B

Border radius

12px

Branding

Remove "Powered by Calcupedia"

Available on Creator plan →

Powered-by color

#FF5C00

Powered-by background

#FFFFFF

Already have an account? Sign in

Live preview

PaO2 (Arterial Oxygen)

mmHg

20 mmHg600 mmHg

FiO2 (Fraction of Inspired Oxygen)

21%100%

PF Ratio

317

PaO2/FiO2 ratio. Educational reference only, not a substitute for clinical judgment.

ARDS Severity (Berlin Criteria)

General severity category using the Berlin ARDS definition thresholds. ARDS diagnosis also requires other clinical criteria beyond this ratio alone. Over 300 - not consistent with ARDS

Share result

Reload calculator

Clear inputs

Found this calculator useful?