A rough Widmark estimate of blood alcohol content and how long it takes to fall. It is for awareness only; never use it to decide to drive.
loading toolHow to use the blood alcohol calculator
- Type your numbers in the boxes (pick your currency or units if asked).
- The answer updates as you type: no button to press.
- Copy the result, or share it on WhatsApp with one tap.
Questions
What is the legal limit in India?
30 mg per 100 ml of blood (0.03%), much lower than in many countries. The only safe limit for driving is zero.
Is my data private?
Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.
Is it free?
Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.
