Useful tools for daily life — from calculating your age in days to converting units and even checking love compatibility for fun.
Life is full of little calculations. How old am I in days? How many minutes until midnight? How many liters in a gallon? Our everyday calculators answer the small questions that pop up at home, school, and work. Quick to use, accurate, and always free.
Calculate your exact age in years, months, days, weeks, hours, and minutes from any date.
PopularAdd and subtract time, calculate duration between two times, and convert time units.
UtilityConvert between units of length, weight, temperature, volume, and more instantly.
ConversionEnter two names to calculate your love compatibility percentage. A fun tool for entertainment!
FunFind Palworld pal breeding combos. Pick parents to see the offspring or pick a target Pal.
GamingConvert your dog's age to human years using science-backed formulas by breed size.
PetsGet exact age in years, months, days for Pearson, Brigance, ASQ, WISC, CELF assessments.
EducationOur everyday calculators are designed for the moments when you need a quick answer without opening a spreadsheet. Need your exact age for a form? Done. Converting a recipe from cups to grams? Easy. Curious how old your dog is in human years? We've got science-backed formulas for that too.
Some of our everyday tools are practical (age, time, unit converter). Others are just for fun (love calculator, Palworld breeding). All of them are free and instant — perfect for those random moments when you wonder "how do I figure that out?"
Yes. We have no plans to charge for any calculator. The site is supported by occasional ads on calculator pages — never on the homepage or category pages.
No. Every calculator works in your browser on any device. Phone, tablet, or computer — just open the page and start calculating.
Absolutely. Browse the full list of calculators on our homepage.
We cover finance, health, maths, construction and everyday needs. Browse the full collection on our homepage.
Back to HomepageEveryday calculations share a common trait: they are done occasionally enough that nobody memorises the method, but often enough to be annoying when you get them wrong. Working out how many square feet of flooring to order, or exactly how old a child is in months, or what a US recipe means by 375 degrees, are all straightforward once you know the rule and awkward when you do not.
These tools handle the rule. More usefully, each page explains it, so the next time you can do it yourself if you would rather.
| Calculator | Typical Use |
|---|---|
| Age Calculator | Exact age for forms, school enrolment, assessments |
| Time Calculator | Hours between shifts, timesheets, scheduling |
| Unit Converter | Metric and imperial conversion for recipes and travel |
| Square Footage | Flooring, paint and material estimates |
| Cubic Yards | Concrete, gravel, soil and mulch ordering |
| Tip Calculator | Restaurant tips and bill splitting |
| Money Calculator | Shared costs and unit price comparison |
One foot is 0.3048 metres, but one square foot is 0.0929 square metres and one cubic foot is smaller still relative to its metric equivalent. Area scales with the square of the linear factor and volume with the cube. Applying a linear conversion to an area figure is the most expensive measurement mistake in home improvement.
Writing seven and a half hours as 7.30 rather than 7.50 on a timesheet quietly loses twelve minutes. Payroll systems work in decimal hours, and converting minutes by dividing by sixty is the step people skip.
A US cup is 236.6 mL, a metric cup is 250 mL and an older UK cup was 284 mL. Baking, where ratios determine the outcome, is where this actually bites. Weighing ingredients avoids the problem entirely, which is why professional recipes specify grams.
Before accepting any conversion, ask whether the number moved the way you expected. Kilometres to miles should give a smaller figure; kilograms to pounds a larger one. This one-second check catches inverted conversion factors, which are the most common conversion error and the easiest to miss.
Every tool here runs entirely in your browser. Nothing you enter is sent anywhere or stored, there is no account to create, and the calculations work on a slow connection because there is no server round trip. Practical tools should be available when you need them, including standing in a hardware aisle with one bar of signal.