All-in-One Free Online Calculators for Health, Budgeting, Productivity & More

Use 30+ simple, accurate, and fast tools to plan better, save time, and stay organized — perfect for freelancers, students, parents, and smart creators.

Family & Parenting Calculators

Allowance Distribution Calculator

Easily split monthly allowance among kids, categories, or needs.

Baby Sleep Schedule Calculator

Create a custom baby sleep schedule based on age and nap cycles.

Pregnancy Due Date Calculator

Calculate your expected due date based on conception.

School Supplies Cost Estimator

Plan and estimate your back-to-school supplies budget.

Screen Time Calculator for Kids

Monitor your child’s daily screen time across devices.

Freelancers & Creators

Freelancer Hourly Rate Calculator

Set your ideal freelance hourly rate based on expenses and goals.

Content Creation Pricing Calculator

Find the right pricing for your freelance content services.

YouTube Video ROI Calculator

Measure the return on investment of your YouTube videos.

Subscription Tracker Calculator

Track and manage all your monthly subscription expenses.

Lifestyle & Daily Use Calculators

Caffeine Intake Calculator

Track your daily caffeine consumption to avoid overuse.

Water Intake Calculator

Find your ideal daily water intake based on lifestyle.

Pet Food Cost Calculator

Estimate monthly food expenses for your cat, dog, or pet.

Electricity Bill Estimator

Predict your electricity costs by usage and appliance type.

Laundry Load Cost Calculator

Calculate the total cost per laundry load including detergent and power.

Travel & Road Life Calculators

Fuel Cost Split Calculator (for Carpool Trips)

Share travel fuel costs fairly with your carpool group.

Jet Lag Risk Calculator (Timezone Difference)

Measure jet lag impact before traveling across time zones.

Trip Budget Calculator (Country + No. of Days)

Plan your travel budget based on destination and stay length.

Driving Time Estimator (Miles + Average Speed)

Estimate your travel time based on distance and speed.

Health & Fitness Calculators

Body Fat Calculator

Estimate your body fat percentage using simple health metrics.

Ideal Weight Calculator

Check your ideal body weight based on height and gender.

Calorie Burn Calculator

Calculate calories burned during specific exercises or workouts.

Macronutrient Split Calculator

Divide your daily calories into protein, carbs, and fat ratios.

Financial Calculators

Side Hustle Profit Calculator

Find out how much real profit your side hustle makes.

Hourly Rate Calculator

Convert your monthly income into an accurate hourly rate.

Freelancing Income Calculator

Track your monthly or yearly freelance income easily.

Savings Goal Calculator

Set your saving goals and track progress toward financial targets.

Online Course ROI Calculator

Evaluate if an online course gives you real value and ROI.

Debt Snowball Calculator

Plan your debt payoff using the proven snowball method.

Monthly Budget Split Calculator (50/30/20 Rule)

Apply the 50/30/20 rule to divide income for smarter budgeting.

Fun Calculators

Time Wasted on Instagram Calculator

See how many hours you’ve spent scrolling on Instagram.

Netflix Binge Time Calculator

See how much time you’ve spent binge-watching Netflix.

Sleep Debt Calculator

Calculate your lost sleep hours and how to recover them.

Friendship Duration Calculator

Calculate the exact number of days, months, or years you've been friends with someone.

How Old Are You in Dog Years

Find out your age in dog years with this fun and accurate converter.

30+ Free Online Calculators to Simplify Your Life – Budget, Health, Time & More

Every day we make dozens of small decisions — how much to spend, how much to save, how much water to drink, or even how much time we’re spending on social media. These may seem like minor things, but they add up. Having quick, reliable tools to help with these choices can make life simpler, faster, and more efficient.

That’s where this collection of 30+ free online calculators comes in. Whether you’re managing your personal budget, planning a trip, tracking your sleep, or figuring out your ideal weight, these tools are designed to make daily life easier. No logins, no complex apps — just instant answers in your browser.

What You’ll Find on This Site

WOW News offers a wide range of practical calculators, neatly organized and easy to use. Here’s what you can expect:

Budgeting & Finance Calculators

These tools help you understand your money better — from splitting allowances to planning savings goals.

  • Allowance Distribution Calculator
  • Monthly Budget Calculator (50/30/20 rule)
  • Freelancer Hourly Rate Calculator
  • Side Hustle Profit Calculator
  • Trip Budget Estimator
  • Savings Goal Calculator
  • Subscription Tracker

Health & Fitness Calculators

Stay on top of your health with calculators built around real data and lifestyle habits.

  • Body Fat Calculator
  • Calorie Burn Calculator
  • Ideal Weight Calculator
  • Water Intake Calculator
  • Macronutrient Split Calculator
  • Sleep Debt Calculator

Lifestyle & Productivity Calculators

Small improvements can lead to big changes. These tools help you track habits, time, and tasks with clarity.

  • Instagram Time Wasted Calculator
  • Screen Time Calculator for Kids
  • Netflix Binge Time Calculator
  • Laundry Load Cost Calculator
  • Electricity Bill Estimator
  • Online Course ROI Calculator
  • Driving Time Estimator
  • Jet Lag Risk Calculator

Freelancer & Creator Focused Tools

Freelancers, content creators, and remote workers can take advantage of these tools to better price their work and track growth.

  • Content Creation Pricing Calculator
  • Freelancing Income Tracker
  • YouTube Video ROI Calculator

Family, Pets & Fun Tools

These personal and lighthearted tools add a human touch to your daily life.

  • Pregnancy Due Date Calculator
  • School Supplies Cost Estimator
  • Pet Food Cost Calculator
  • Friendship Duration Calculator
  • How Old Are You in Dog Years Calculator

Frequently Asked Questions (FAQs)

Are these calculators really free to use?

Yes, every calculator on this site is completely free. No subscriptions, signups, or hidden charges.

Do I need to download an app to use them?

No. All tools work directly in your web browser — just open and use.

Are these calculators mobile-friendly?

Yes. The design is responsive, so all tools work smoothly on phones, tablets, and desktops.

Are the results accurate?

Each tool is built using standard formulas or logic based on best practices. While not a substitute for professional advice, they are reliable for general use.

Is any personal data collected?

No. Your inputs are processed in your browser. Nothing is stored or shared.

Can I share these tools with others?

Absolutely. You can share any tool’s link with friends, clients, or students.

Are these tools useful for freelancers and students?

Yes. Many tools are designed specifically for freelancers, content creators, and students to manage time, pricing, and productivity.

Do you plan to add more tools in the future?

Yes, new tools are added regularly based on user feedback and trending needs.

Can I request a custom tool?

Yes, if you have a specific idea or need, you can contact us to discuss custom tool development.

Final Words

These calculators were built with one goal in mind: to save you time and help you make better decisions. Whether you’re managing your budget, health, learning schedule, or simply tracking habits — there’s a tool here that can make your life easier. No installations, no ads overload, no confusion. Just clean, fast, and focused tools — ready to use whenever you need them.