Work out anaemia severity instantly with clear inputs, formula shown and shareable results.
Compares haemoglobin with the WHO threshold for the chosen population group and applies an altitude adjustment above 1000 metres.
WHO anaemia thresholds
Adult men 13, non-pregnant women 12, pregnant women 11, children 5-11 years 11.5 g/dL. Severe under 8, moderate 8-10.9, mild up to the group threshold
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Haemoglobin rises with altitude to compensate for lower oxygen tension, so unadjusted values underestimate anaemia.
Yes. WHO also applies a downward adjustment for smokers because carboxyhaemoglobin raises measured haemoglobin.