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Steroid Conversion Calculator

Convert between corticosteroids using BNF equivalent anti-inflammatory doses.

By Dr Amer Sheikh, GP Updated 17 October 2026 Clinical review pending

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Equivalent anti-inflammatory doses

SteroidEquivalent to prednisolone 5 mg
Prednisolone5 mg
Hydrocortisone20 mg
Methylprednisolone4 mg
Triamcinolone4 mg
Deflazacort6 mg
Dexamethasone750 micrograms
Betamethasone750 micrograms
Cortisone acetate25 mg

These cover glucocorticoid effect only. They ignore mineralocorticoid activity and duration of action.

Consider a Steroid Emergency Card and sick-day rules for people on long-term or high-dose steroids.

Frequently asked questions

What is prednisolone 5 mg equivalent to in hydrocortisone?

About 20 mg of hydrocortisone.

How strong is dexamethasone compared with prednisolone?

Dexamethasone 750 micrograms is about equal to prednisolone 5 mg.

Who needs a Steroid Emergency Card?

People at risk of adrenal insufficiency, such as those on 5 mg prednisolone or more for 4 weeks.

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References

  1. BNF. Glucocorticoid therapy: equivalent anti-inflammatory doses. bnf.nice.org.uk

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