Life Tools
Everyday tools for tracking milestones: calculate age, find date durations, check health indexes, and plan life events fast. Simple utilities to check your exact age, count down the days to your next birthday, or calculate differences between calendar dates.
Age Calculator
Calculate your exact age in years, months, days, and minutes from any birth date, with a live countdown to your next birthday.
Date Calculator
Add or subtract days, weeks, months, or years from any date to find target dates, with business-day and holiday options.
Birthday Countdown
Find out exactly how many days, hours, and minutes remain until your next birthday with a live animated countdown timer.
Date Difference Calculator
Calculate the exact days, weeks, months, and years between two dates, with workday counts and weekend breakdowns included.
Pregnancy Calculator
Calculate your estimated due date and gestational age from key dates, and track weekly baby-size milestones with visuals.
Stopwatch & Timer
Track time with a high-precision stopwatch or set custom countdown timers. Supports Picture-in-Picture system-wide overlay, lap splits, and audio alarms.
Internet Speed Test
Measure your internet connection download speed, upload speed, ping latency, and jitter in real-time with an active oscilloscope waveform.
Life Tools FAQ
Quick answers regarding delivery timelines, hydration, and other everyday calculations.
How long will mail take from zip code to zip code?
Mail delivery time depends on the carrier service (like USPS, FedEx, or UPS). Standard USPS First-Class mail generally takes 1 to 5 business days within the contiguous United States, while Priority Mail takes 1 to 3 days. You can estimate transit times using our date calculator or checking official carrier mapping tools.
How much water to drink a day calculator?
A general rule of thumb is to drink about 8 to 12 cups (64 to 96 ounces) of water daily. However, individual water needs depend on your weight, activity level, and climate. A standard formula recommends drinking 0.5 to 1 ounce of water per pound of body weight daily.