BED / EQD2 Calculator

Prescription Dose

= 2.75 Gy / fraction
Tumor
α/β =  Gy
Late
α/β =  Gy
Prostate / Spine
α/β =  Gy
BED (Gy) — — —
EQD2 (Gy) — — —

Alternative Fractionation

Isoeffective total dose (Gy) if the same BED were delivered in a different number of fractions.

Fractions
Tumor
α/β = 10 Gy
Late
α/β = 3 Gy
Prostate / Spine
α/β = 2 Gy
1 fraction — — —
3 fractions — — —
5 fractions — — —
10 fractions — — —
fractions — — —

BED / EQD2 calculations based on a spreadsheet by Dr. Mike Wahl.