BAC and alcohol clearance time
Widmark formula: what you drank → estimated blood alcohol and when you can drive
Drinks consumed
Beer 0.5 L 5%pcs
Wine 150 ml 12%pcs
Vodka 50 ml 40%pcs
Whisky 40 ml 43%pcs
Cider 0.5 L 4.5%pcs
Liqueur 30 ml 20%pcs
Estimated BAC (peak)
Total ethanol: 0 g (0 standard drinks)
0 ‰
Effect: mild euphoria
- To 0.2 ‰ (UA limit)
- ok now
- Clearance to ~0 ‰
- ~0 h
WHO weekly guidance: ≤100 g ethanol/week per some guidelines; no safe dose per WHO 2023
Widmark estimate (r=0.68 men / 0.55 women, elimination ~0.15 ‰/h). Individual variation ±20%. Safest is not to drive after drinking.