VBAC Success — Grobman MFMU Calculator (Bands)

Predicts likelihood of successful vaginal birth after caesarean (TOLAC) using maternal age, BMI, prior vaginal delivery, prior VBAC, and indication for prior CS (Grobman 2007; race-free recalibration 2021). Use the live MFMU online tool for individualised %; this calculator records the band.