Energy Management Calculator

Assess your daily energy level based on sleep, exercise, nutrition, hydration, and stress factors. Identify what boosts and drains your energy.

Hours of sleep

hrs

Sleep quality

/10

Exercise today

min

Water intake

glasses

Balanced meals

meals

Caffeine servings

cups

Screen time before bed

hrs

Stress level

/10

Tab to move between fields

Energy score

51/100

Estimated peak hours4.1 hrs

Energy sustainability73/100

Crash risk15%

Sleep contribution21/30

Exercise contribution10/20

How to Use This Calculator

Rate last night's sleep hours and sleep quality (1–10 scale).
Enter today's exercise minutes and glasses of water consumed.
Rate your stress level, nutrition quality, and social connection score.
Review your Total Energy Score and the breakdown by category.
Focus on the lowest-scoring areas (sleep, hydration, exercise) to improve tomorrow's energy.

How the result changes with Sleep quality

Hours of sleep: Hours slept last night. Optimal is 7-9 hours for adults.
Sleep quality: Rate your sleep quality (1=terrible, 10=perfect, restorative sleep).
Exercise today: Minutes of physical activity. 30-60 min is optimal for energy.
Water intake: Glasses of water (8 oz each). Target: 8 glasses/day.
Balanced meals: Number of balanced meals eaten today.
Caffeine servings: Coffee/tea/energy drink servings. 1-3 is moderate.
Screen time before bed: Hours of screen use in the 3 hours before sleep.
Stress level: Current stress level (1=very relaxed, 10=extremely stressed).

Energy score: Overall energy level from all factors combined.
Estimated peak hours: Hours of peak productivity you can expect today.
Energy sustainability: How well your energy sustains throughout the day.
Crash risk: Likelihood of an energy crash (high caffeine, poor sleep, stress).
Sleep contribution: Energy points contributed by sleep quality and duration.
Exercise contribution: Energy points contributed by physical activity.

Identify Input Parameters
4 parameters
Hours of sleep = 7, Sleep quality = 7, Exercise today = 30, Water intake = 8 = 8 input(s) provided
Calculate Energy score
Energy score
51 = 51
Calculate Estimated peak hours
Estimated peak hours = round(totalEnergyScore / 100 * 8 * 10) / 10
4.1 = 4.1
Calculate Energy sustainability
Energy sustainability = Math
73 = 73