Are the calculators on QuickCalcLabs truly free?

Yes, all our health and fitness calculators are 100% free to use, with no hidden fees or subscriptions.

Is my data safe and private?

Absolutely. We do not store any personal health data entered into our calculators. Your privacy is our top priority.

How accurate are the results?

Our calculators are built on well-established formulas and data from reputable sources. However, they are intended for informational purposes and should not replace professional medical advice.

Can I use these calculators on my mobile phone?

Yes, our website is fully responsive and designed to work seamlessly on all devices, including desktops, tablets, and mobile phones.

Your Free Toolkit for Health & Wellness Calculations

Instant, accurate, and private online calculators to help you track your fitness, nutrition, and life milestones. Start your wellness journey with data you can trust.

⚡ Explore All Calculators

Why Trust QuickCalcLabs?

🔒 Privacy First

We never save or share your personal health data. Your calculations are anonymous and secure.

✅ Scientifically Based

Our tools use established formulas and guidelines to provide you with accurate estimations.

📱 Easy to Use

A clean, fast, and mobile-friendly design ensures you get your results without any hassle.

Our Suite of Free Calculators

Discover our carefully curated collection of calculators designed to help you optimize every aspect of your life.

Flagship Calculator

💼

Work-Life Quality Index

Our most comprehensive assessment tool. Evaluate your work-life quality across 9 key dimensions including time balance, mental wellbeing, physical health, and career satisfaction. Perfect for remote, hybrid, and onsite workers.

9 Dimensions Personalized Insights Actionable Tips

Calculate Your WLQI Score

💼

Work & Productivity

🔥 Burnout Risk Calculator

Assess your risk of workplace burnout based on work hours, stress levels, sleep quality, and recovery patterns.

Check Burnout Risk

Hot

📊 Productivity Score Calculator

Measure your work productivity based on deep work hours, task completion rate, and focus quality.

Calculate Productivity

⏰ Distraction Cost Calculator

Calculate how much productive time you lose every day to interruptions, notifications, and context switching.

Calculate Cost

📅 Meeting Load Stress Calculator

Assess how your meeting schedule impacts productivity, stress, and work capacity. Optimize your calendar.

Check Meeting Load

🧠 Stress Load Calculator

Calculate your cumulative stress burden from work, lifestyle, and personal factors with management strategies.

Measure Stress Load

😴

Sleep, Caffeine & Screen Time

😴 Sleep Chronotype & Bedtime Calculator

Find your natural chronotype and get a science-based ideal bedtime window from your wake-up time and age.

Find Ideal Bedtime

Popular

☕ Am I Drinking Too Much Caffeine?

Add up caffeine from coffee, tea, soda, and energy drinks to see if you're within safe daily limits.

Check Caffeine Intake

📱 Blue Light Exposure Calculator

Estimate blue light exposure from screens and understand your eye-strain and sleep-disruption risk.

Check Screen Exposure

😴 Sleep Deprivation Calculator

Compare your recent sleep to age-based recommendations and see if you may be short on sleep.

Check Sleep Deprivation

📉 Weekly Sleep Debt Calculator

Track how much sleep you're behind over the last 7 nights.

Calculate Sleep Debt

💤 Nap Optimization Calculator

Find the best nap length and timing to boost energy without ruining your bedtime.

Optimize Your Nap

💪

General Health & Fitness

⚖️ BMI Calculator

Check your Body Mass Index to understand your weight category.

Calculate BMI

Most Used

🔥 Calorie Calculator

Estimate daily calorie needs for your weight goals (loss, maintenance, or gain).

Calculate Calories

Popular

💧 Water Intake Calculator

Find out your recommended daily water intake for optimal hydration.

Calculate Water Intake

📊 Body Fat Calculator

Estimate your body fat percentage using the U.S. Navy method.

Calculate Body Fat

🥗 Macro Calculator

Determine your ideal daily intake of protein, carbs, and fats.

Calculate Macros

📈 RMR Calculator

Discover your Resting Metabolic Rate to understand your base calorie burn.

Calculate RMR

Featured

📅 Age Calculator

Calculate your precise age in years, months, days, and even minutes.

Calculate Age

🌸

Women's Health & Pregnancy

🌸 Period & Ovulation Calculator

Track your menstrual cycle and predict your most fertile days.

Track Your Cycle

Hot

🤰 Pregnancy Due Date Calculator

Estimate your baby's due date based on your last menstrual period.

Find Due Date

⚖️ Pregnancy Weight Gain Calculator

Track if your weight gain is within the recommended range for a healthy pregnancy.

Track Weight Gain

👶

Baby & Toddler Health

👶 Baby Growth Percentile Calculator

Compare your baby's growth (weight, height) with WHO standards.

Track Growth

🍼 Baby Feeding Schedule Calculator

Get a sample feeding schedule based on your baby's age and needs.

View Schedule

Fun

👶 Chinese Baby Gender Predictor

Use the traditional Chinese calendar method to get a fun boy/girl prediction.

Predict Gender (Fun)

📏 Baby Height Predictor

Estimate your child's adult height range using parents' heights.

Predict Height

Unique

🔢 Baby Name Numerology

See the Pythagorean numerology number and vibe behind your favorite baby names.

Check Name Number

🎲 Baby Name Generator

Generate cute, classic, modern, and nature-inspired baby name ideas.

Generate Names

☀️

Sun, Heat & Skin Safety

⏱️ Sunburn Time & SPF Reapplication

Estimate how fast you could burn for your skin type in today's UV index and get a simple SPF reapply timer.

Estimate Sunburn Time

🧴 Daily UV Skin Cancer Risk Score

Combine today's UV index, time outdoors, and protection habits into a simple daily UV risk score.

Check Today's UV Risk

☀️ Melanoma & Hyperpigmentation Risk

Estimate your long-term UV-related skin risk based on sensitivity, sunburn history, tanning, and protection habits.

Check UV Skin Risk

🥵 Heat Stroke Risk Calculator

Assess heat exhaustion / heat stroke risk from temperature, humidity, activity, clothing, and hydration.

Calculate Heat Risk

🐾

Pet Age, Weight & Pregnancy

🐶 Dog Age to Human Years

Convert your dog's age to human years with size-based life-stage curves.

Convert Dog Age

🐱 Cat Age to Human Years

Estimate your cat's age in human years and life stage.

Convert Cat Age

🐾 Pet Pregnancy Due Date

Estimate dog or cat pregnancy due dates from the breeding date.

Calculate Pet Due Date

⚖️ Dog Weight Chart Checker

See if your dog's weight is roughly within a typical band for size and age.

Check Dog Weight

⚖️ Cat Weight Chart Checker

Check whether your cat's weight is roughly in a healthy range for frame and age.

Check Cat Weight

🍖 Pet Nutrition Calculator

Estimate daily calories and food portions for your dog or cat based on weight and activity.

Calculate Pet Nutrition

🐕 Puppy Training Timeline

See age-appropriate training and socialization milestones for your puppy.

View Puppy Milestones

💉 Pet Vaccination Schedule Guide

Get a general overview of puppy/kitten and adult vaccine timing (always confirm with your vet).

View Vaccine Guide

💊 Pet Medication Safety Guide

Understand why vets must calculate doses and what to ask before giving any meds.

Check Med Safety

Learn More From Our Blog

Go beyond the numbers with our articles on health, wellness, and nutrition.