Free Age Calculator & Calorie Calculator Online
Find your exact chronological age, convert your pet’s age to human years, or count calories at Starbucks, Subway, Cava, and more — all in seconds.
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Two calculator categories, one goal — a fast, accurate answer without downloading an app.
Age Calculators
Find your exact chronological age, convert your dog or cat’s age to human years, and explore lunar age traditions.
Explore Age Tools →Calorie Calculators
Count calories at Starbucks, Subway, Cava, Chipotle & Panda Express. Plus convert steps and treadmill time into calories burned.
Explore Calorie Tools →All Free Age & Calorie Calculators
Every tool is 100% free, instant, and optimized for desktop and mobile.
Chronological Age Calculator
Find your exact age in years, months, and days from your date of birth.
Use Calculator AgeCat Age Calculator
Convert your cat’s age into human years using the latest veterinary formulas.
Use Calculator AgeLunar Age Calculator
Calculate your traditional lunar age based on Chinese and Korean calendar systems.
Use Calculator AgeDog Age Calculator
Convert your dog’s age to human years based on breed size and scientific research.
Use Calculator CalorieStarbucks Calorie Calculator
Calculate calories in any Starbucks drink by size, milk type, and add-ons.
Use Calculator CalorieSubway Calorie Calculator
Count exact calories in your Subway sandwich by bread, protein, toppings, and sauce.
Use Calculator CalorieSteps to Calories Calculator
Find out how many calories you burned today based on your step count and body weight.
Use Calculator CalorieCava Calorie Calculator
Build your Cava bowl and get a full calorie breakdown for every ingredient.
Use Calculator CalorieTreadmill Calorie Calculator
Estimate calories burned on the treadmill by speed, incline, weight, and duration.
Use Calculator CalorieChipotle Calorie Calculator
Build your Chipotle bowl or burrito and calculate calories by protein, rice, beans, and toppings.
Use Calculator CaloriePanda Express Calorie Calculator
Build your Panda Express plate or bowl and calculate calories by entree, side, and portion size.
Use Calculator CalorieTaco Bell Calorie Calculator
Build your Taco Bell order and get an instant calorie total for every item.
Use Calculator CalorieChick-fil-A Calorie Calculator
Build your order and get calories, protein, carbs and fat for every menu item.
Use CalculatorAge Calculator & Calorie Calculator Online — Free & Instant
AgeAndCalorie.com is a free calculator online built around two everyday questions: exactly how old is something (you, your dog, your cat), and exactly how many calories are in what you’re about to eat. Instead of one generic tool trying to do everything, each calculator here is built for a single specific question, so the result is faster and more accurate than a one-size-fits-all calculator.
No account, no app download, and no data saved between visits — enter your details, get your number, and move on.
Age Calculator — Find Your Exact Age
Our age calculator tools go beyond just counting birthday years. A chronological age calculator finds the precise span between a date of birth and a reference date, broken into years, months, and days — the format schools, clinicians, and government forms actually ask for, rather than a rounded whole number.
- School enrollment & assessments: Many school cut-off rules and developmental assessments require age in years and months, not just a birth year.
- Medical & legal paperwork: Insurance forms and clinical intake forms often ask for exact age as of the appointment date.
- Pet ownership: Our dog age calculator adjusts for breed size — larger breeds age faster than small ones — and our cat age calculator uses vet-referenced formulas for the rapid growth cats go through in their first two years.
- Cultural & lunar age: The lunar age calculator converts your birth date into the traditional Chinese and Korean lunar calendar age, still used for cultural milestones today.
How to Use the Age Calculator
- Open the calculator for your specific need (chronological, dog, cat, or lunar).
- Enter the date of birth — your own, or your pet’s.
- Get an instant, exact result broken into years, months, and days.
💡 Chronological age is different from a simple “years since birth” count — it accounts for exactly how many days have passed in the current month and year, which is why forms that require precision ask for it specifically.
Calorie Calculator — Count Calories at Your Favorite Restaurants
Our calorie calculator tools use each restaurant chain’s own published nutrition data, so instead of a single fixed number per item, you build your exact order — bread, protein, toppings, sauce — and watch the total update as you go.
- Starbucks calorie calculator: Customize by size, milk type, and add-ons.
- Subway calorie calculator: Build your sandwich ingredient by ingredient.
- Cava calorie calculator: Assemble your bowl or pita and see a full macro breakdown.
- Chipotle & Panda Express calculators: Build your bowl or plate the same way you’d order in person.
- Steps to calories & treadmill calculators: Estimate calories burned from your daily step count or a treadmill session, factoring in weight, speed, and incline.
How to Use the Calorie Calculator
- Choose the restaurant or activity calculator you need.
- Select your exact order (or enter steps, weight, and pace for activity calculators).
- See your calorie total — and for build-your-own meals, a live running total as you add each item.
Why Use AgeAndCalorie.com?
- 100% Free: Every calculator is free, with no fees or subscriptions.
- No Sign-Up Required: Get instant results without creating an account.
- Accurate & Sourced: Age formulas follow standard calendar-based calculation; calorie data is drawn from each restaurant’s published nutrition information.
- Mobile Friendly: Every tool works on phone, tablet, or desktop.
- Built for US & Canada: Units and restaurant menus are tailored for North American users.
Frequently Asked Questions
Quick answers about our age and calorie calculators.