Calculators to cut back on alcohol, smoking and caffeine
10 tools matched to this goal.
Kids Water Intake Calculator
Daily fluid needs for children and teens.
Caffeine Cutoff Calculator
Last time to drink coffee without hurting sleep.
Water Intake Calculator
Daily water needs for your weight, exercise and climate.
Alcohol Units & Calories Calculator
Weekly alcohol units and calories from your drinks.
Blood Alcohol Content Estimator
Rough BAC estimate and time to sober, using Widmark.
Daily Caffeine Intake Calculator
Add up caffeine from coffee, tea, soda and energy drinks.
Smoking Cost & Savings Calculator
What smoking costs and what you save by quitting.
Sun Exposure & SPF Calculator
Estimated time to burn with and without sunscreen.
Alcohol-Free Savings Calculator
Money, calories and units avoided since you stopped.
Serum Osmolality Calculator
Blood concentration from sodium, glucose and BUN.
Other goals
- Lose weight
- Build muscle
- Eat better
- Get fitter
- Protect my heart
- Manage blood sugar
- Pregnancy & fertility
- Care for my child
- Sleep better
- Mental wellbeing
- Cut back on drink, smoke & caffeine
- Understand my lab results
Related guides
Nutrition & Diet
Hidden Calories in Drinks
Liquid calories add up quickly and do not fill you up.
Sleep & Mental WellbeingCaffeine and Sleep: When to Stop
Caffeine lingers in the body longer than most people think.
Lifestyle & PreventionHow Much Water Should You Drink?
The "eight glasses" rule is a guide, not a law.