Other Tools
Handy utilities for dates & time, study, construction, networking, security, and conversions.
Age Calculator
Find exact age from date of birth—years, months, days—and upcoming birthday details.
Use ToolDate Calculator
Add/subtract days, or find days between two dates. Supports weekdays only and holidays (optional).
Use ToolTime Calculator
Add or subtract time (hh:mm:ss), convert to seconds/minutes, and normalize over 24h.
Use ToolHours Calculator
Sum shifts with breaks, daily/weekly totals, and optional pay rate & overtime.
Use ToolGPA Calculator
Compute semester & cumulative GPA—weighted/unweighted—by credits and grade points.
Use ToolGrade Calculator
Find the score needed on your final to reach a target grade; supports category weights.
Use ToolConcrete Calculator
Estimate concrete volume for slabs, footings, tubes; output in m³, yd³, and 20/25/40kg bags.
Use ToolSubnet Calculator
IPv4 CIDR helper: network, usable host range, broadcast, wildcard mask, and more.
Use ToolPassword Generator
Create strong passwords or passphrases with length, character sets, and entropy meter.
Use ToolConversion Calculator
Quick unit converter for length, area, volume, weight, speed, temperature, and more.
Use Tool