Side-by-side comparison helps you choose the right calculator for a specific clinical question.
Endocrinology
Convert between corticosteroid doses by anti-inflammatory potency equivalence: prednisone 5 mg = hydrocortisone 20 mg = methylprednisolone 4 mg = dexamethasone 0.75 mg.
Formula
Equivalent dose = (current dose × source potency) ÷ target potency. Hydrocortisone = 1, Prednisone = 4, Methylpred = 5, Dexamethasone = 25.
Inputs
Endocrinology
Estimate the starting levothyroxine dose for hypothyroidism: ~1.6 mcg/kg/day for full replacement, ~25–50 mcg/day for subclinical hypothyroidism. Recheck TSH at 6–8 weeks.
Formula
Dose = Weight × factor. Replacement: 1.6 mcg/kg. Suppression: 2.0 mcg/kg. Subclinical/elderly: 1.0 mcg/kg.
Inputs