Free General & Fun Calculators
Calculate your exact age, find your public IP address with location and VPN detection, and measure time between any two dates — all free, instant, and browser-based.
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Free Tools
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Zodiac Signs
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Signup Needed
100%
Browser-Based
Age Calculator
Exact age, zodiac sign & birthday countdown
Calculate your precise age in years, months, weeks, days, hours, minutes, and seconds. Get your zodiac sign, birthstone, days until your next birthday, and fun facts from your birth year. Fully leap-year aware.
- Find your exact age in years, months, and days
- Calculate age for legal or medical forms
- Discover zodiac sign and birthstone for any birthdate
What's My IP
Public IP, ISP, location & VPN detection
Instantly find your public IP address with ISP, hostname, city, country, and connection type. Look up any IP address for location and network details. Detects VPN, proxy, Tor, and data centre IPs.
- Verify your VPN is working (check IP location changed)
- Troubleshoot network connection issues
- Look up which ISP or organisation owns an IP address
Time Duration Calculator
Days between dates, add/subtract time & business days
Three tools in one: calculate the exact duration between any two dates (years, months, days, hours), add or subtract time from a date to get a result date, and count business/working days between dates. Fully leap-year aware.
- Calculate days until a project deadline or event
- Work out a contract end date from a start date
- Count working days for legal notice periods
Which Calculator Should I Use?
Match your question to the right tool:
| I need to… | Example | Use this tool |
|---|---|---|
| Find my exact age in years, months, and days | Born June 15, 1990 → exact age today | Age Calculator |
| Count days until my next birthday | How many days until June 15? | Age Calculator |
| Find my zodiac sign from my date of birth | Born Mar 22 → Aries | Age Calculator |
| Find my current public IP address | What IP does my ISP assign me? | What's My IP |
| Verify my VPN is hiding my real IP | Check IP location shows VPN country | What's My IP |
| Look up who owns an IP address | 8.8.8.8 → Google / Mountain View, US | What's My IP |
| Calculate days between two dates | Jan 1, 2020 to today = X days | Time Duration Calculator |
| Add time to a date to find a result date | Start Mar 1 + 90 days = May 30 | Time Duration Calculator |
| Count working days between two dates | Mon Mar 3 to Fri Mar 28 = 20 business days | Time Duration Calculator |
Zodiac Sign Reference
The Age Calculator shows your zodiac sign automatically. Here's the full reference:
Mar 21 – Apr 19
Fire
Apr 20 – May 20
Earth
May 21 – Jun 20
Air
Jun 21 – Jul 22
Water
Jul 23 – Aug 22
Fire
Aug 23 – Sep 22
Earth
Sep 23 – Oct 22
Air
Oct 23 – Nov 21
Water
Nov 22 – Dec 21
Fire
Dec 22 – Jan 19
Earth
Jan 20 – Feb 18
Air
Feb 19 – Mar 20
Water
IP Address Reference Guide
Understanding what the What's My IP tool shows you:
IPv4 vs IPv6
| Property | IPv4 | IPv6 |
|---|---|---|
| Format | 192.168.1.1 | 2001:0db8::7334 |
| Length | 32 bits (4 octets) | 128 bits (8 groups) |
| Addresses | ~4.3 billion | Virtually unlimited |
| Separator | Dot (.) | Colon (:) |
| Status | Widely used, running out | Increasingly adopted |
Common Private IP Ranges
| Range | Common Use |
|---|---|
| 10.0.0.0 – 10.255.255.255 | Enterprise / corporate networks |
| 172.16.0.0 – 172.31.255.255 | Medium networks, ISP backbones |
| 192.168.0.0 – 192.168.255.255 | Home and small office routers |
| 127.0.0.1 | Localhost (your own device) |
Private IP addresses are never visible on the public internet. The What's My IP tool shows your public IP only.
Time Duration Quick Reference
Useful conversions for the Time Duration Calculator:
Who Uses These Calculators?
Students & Curious Minds
Use the Age Calculator to discover zodiac signs, birthstones, and historical events from any birth year. Use the Time Duration Calculator for history assignments measuring time spans between events.
Business & Legal Teams
Use the Time Duration Calculator to count working days for legal notice periods, contract terms, and project deadlines. Use the "Add Time" mode to calculate exact end dates from contract start dates.
IT & Network Professionals
Use "What's My IP" to verify public IPs, confirm VPN connectivity, troubleshoot network issues, and look up IP ownership for security investigations.
Event Planners & Countdown Fans
Use the Age Calculator's birthday countdown to know exactly how many days remain. Use the Time Duration Calculator to measure how far away upcoming events are.
Why Use Texterfly General Calculators?
Instant Results
Age, date, and time calculations are instant — no submit button, no server wait. Results appear as you type or change settings.
Private by Design
Age and time tools run entirely in your browser. The IP tool detects your public IP without storing or logging any data.
Works Everywhere
Fully responsive on iOS, Android, Windows, and macOS. No app download, no account. Open from any browser on any device.
Frequently Asked Questions
How do I calculate my exact age?
Enter your date of birth in the Age Calculator. The tool calculates your exact age in years, months, weeks, days, hours, minutes, and seconds — accounting for leap years. It also shows how many days until your next birthday and your zodiac sign.
What is the difference between a public and private IP address?
Your public IP is assigned by your ISP and is visible to websites on the internet. Your private IP (e.g. 192.168.x.x) is assigned by your router and only visible within your local network. The "What's My IP" tool shows your public IP — what the outside world sees.
What is the difference between IPv4 and IPv6?
IPv4 uses four dot-separated numbers (e.g. 192.168.1.1) supporting ~4.3 billion addresses. IPv6 uses eight colon-separated hex groups (e.g. 2001:0db8::7334) supporting virtually unlimited addresses. IPv6 was created because IPv4 addresses are running out. Most devices and networks now support both.
Can I look up any IP address, not just my own?
Yes. Enter any public IPv4 or IPv6 address in the lookup field to get ISP/organisation, approximate city and country, hostname, and VPN/proxy/data centre detection.
How does the Time Duration Calculator handle leap years?
It uses exact calendar arithmetic rather than approximations like 365.25 days/year. Every February 29th in the date range is accounted for precisely, giving an accurate day count between any two dates.
What is a business days calculator?
It counts only weekdays (Mon–Fri) between two dates, excluding Saturdays and Sundays. Public holidays are not automatically excluded since they vary by country — subtract those manually for exact workday counts. Useful for project deadlines, legal notice periods, and delivery estimates.
What zodiac sign am I?
Aries (Mar 21–Apr 19), Taurus (Apr 20–May 20), Gemini (May 21–Jun 20), Cancer (Jun 21–Jul 22), Leo (Jul 23–Aug 22), Virgo (Aug 23–Sep 22), Libra (Sep 23–Oct 22), Scorpio (Oct 23–Nov 21), Sagittarius (Nov 22–Dec 21), Capricorn (Dec 22–Jan 19), Aquarius (Jan 20–Feb 18), Pisces (Feb 19–Mar 20). The Age Calculator shows this automatically after you enter your date of birth.
What does VPN or proxy detection show?
It checks whether your IP is associated with a known VPN service, proxy server, Tor exit node, or data centre IP range rather than a residential ISP. Useful for verifying your VPN is active. Detection is based on IP reputation databases and may not flag every VPN provider.
Can I add or subtract time from a specific date?
Yes. The Time Duration Calculator includes an "Add / Subtract Time" mode where you enter a start date and specify time to add or subtract (years, months, weeks, days, hours, minutes). Useful for calculating deadlines, warranty end dates, and subscription renewals.
How many days until my next birthday?
Enter your date of birth in the Age Calculator — it automatically calculates the exact number of days, hours, and minutes until your next birthday based on today's date.
Are these calculators free?
Yes. All three calculators are 100% free with no registration, subscription, or payment required.
Is my data private?
Age and time calculations run entirely in your browser — no data is sent anywhere. The "What's My IP" tool makes a network request to detect your public IP (which requires an external lookup by design), but does not store or log your IP or location.