Age Calculator
Calculate exact age in years, months, days, and total days.
Daily Life
Daily-Life Calculators
Use practical calculators for time, planning, and everyday decisions.
Practical tools for dates, schedules, routines, budgets, and common daily calculations.
Tools in this category
Date Calculator
Find the difference between two dates in days.
Days Between Dates Calculator
Count days between any two dates with clear sign and absolute difference.
Business Days Calculator
Count weekdays between dates, excluding weekends.
Add/Subtract Days Calculator
Add or subtract day offsets from a base date.
Countdown Calculator
Measure remaining time from now to a selected future date and time.
Week Number Calculator
Find ISO week number for any date.
Time Duration Calculator
Calculate elapsed duration between two times.
Tip Calculator
Compute tip amount, total bill, and per-person share.
Split Bill Calculator
Split shared bills fairly with optional extra charge percentage.
Discount Calculator
Calculate discounted price and post-tax total.
Unit Converter
Convert between common length units using consistent factors.
Currency Converter
Convert amounts using static reference FX rates for planning.
Height Converter
Convert height values across metric and imperial units.
Weight Converter
Convert weight units including kg, g, lb, and oz.
Working Days Calculator
count working weekdays between two dates
Overtime Hours Calculator
separate regular and overtime hours from weekly totals
Shift Hours Calculator
calculate net shift duration after breaks
Age on Specific Date Calculator
calculate exact age for a chosen calendar date
Exact Weeks Between Dates Calculator
calculate exact week difference between two dates
Anniversary Calculator
calculate elapsed time since an anniversary date
Birthday Countdown Calculator
count days until your next birthday
Subscription Cost Calculator
estimate long-term subscription spending with annual increases
Rent Split Calculator
split rent and shared utilities evenly
Roommate Expense Split Calculator
split multiple shared living expenses by roommate count
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Category FAQ
How should I use the daily-life calculators tools?
Start with one calculator, review the assumptions shown on the page, then compare with related tools for scenario planning.
Are these tools free to use?
Yes. Online Tools and Calculators is free and designed for practical educational and planning use.
Can I use these tools on mobile?
Yes. The pages are built mobile-first with large fields, clear labels, and keyboard-friendly controls.