Education & Utilities
Free education calculators: GPA, grade calculators, college cost estimators, password generators, IP subnet calculators, bandwidth calculators, and weather tools.
GPA Calculator
Calculate your Grade Point Average. Add your courses, credits, and grades to see your cumulative GPA.
Grade Calculator
Calculate your current grade and find out what you need on remaining assignments to reach your target grade.
College Cost Calculator
Estimate the total cost of college including tuition, room, board, and calculate how much you'll need to borrow.
Height Predictor Calculator
Predict a child's adult height based on current measurements and parent heights using the mid-parental height method.
Bra Size Calculator
Description
Shoe Size Converter
Convert shoe sizes between US, UK, EU, and centimeters. Select your gender for accurate conversions.
Password Generator
Generate strong, secure passwords with customizable length and character options. See strength analysis and crack time estimates.
IP Subnet Calculator
Calculate subnet masks, network addresses, broadcast addresses, and host ranges for any IP address and CIDR notation.
Bandwidth Calculator
Calculate download times for files based on your internet speed. Convert between Mbps, MB/s, and see daily transfer capacity.
Dew Point Calculator
Calculate the dew point temperature from air temperature and relative humidity. Understand comfort levels and moisture content.
Academic Calculators
Calculate your GPA, weighted grades, and estimate college costs. Essential tools for students planning their academic future.
Sizing & Conversion Tools
Convert shoe sizes between US, UK, EU and CM. Calculate bra sizes and predict adult height based on parental genetics.
Tech & Network Tools
Generate secure passwords, calculate IP subnets, and estimate bandwidth requirements. Tools for IT professionals and enthusiasts.