Calculate masks and network IP addresses without internet. Input IP and details to determine and range. Convert between decimal and CIDR notation. Export results as text or copy directly.
by John Rouda★ 2.423 ratingsUtilitiesFreeData updated 2026-09-08
Calculate for different shapes and dimensions. Input material type, length, width, and thickness. Choose units and view results in kilograms or pounds. Save calculations and export data as PDF.
Calculate loads, voltage drops, and conductor sizes according to NEC codes. Verify compliance for residential and commercial projects. Access code references for 2002–2023 editions. Perform wire sizing, panel scheduling, and circuit calculations.
Access and customize 500+ emoji including Grinning Face, Face With Tears of Joy, Winking Face, Smiling Face With Sunglasses, Face Throwing a Kiss, and Face Savouring Delicious Food. Add text, , and animations.
And reverse with over 100 questions. Solve problems using a numerical keyboard and submit answers quickly. Choose from three training modes: EASY, HARD, or . Answer within one minute in HARD and modes. Access hints for powers and binary calculations.
Browse upcoming events and RSVP to them. Set reminders for events and track attendance via QR code or card reader. Read and share campus news. Network with classmates through profiles and chat. Access campus resources, maps, and links.
Turn your into a for quick math operations. Perform basic and advanced calculations directly in any . Input numbers and equations using the on-screen . Get results instantly without switching apps or copying values.
Calculate earnings for hourly, daily, weekly, bi-weekly, semi-monthly, quarterly, and yearly periods. Input fixed income and estimated working time to receive accurate results. Track progress over time and adjust inputs for updated calculations.
Calculate rates using AGA 3 standard. Determine MCF per day for a single well. Input duration and other parameters. Perform rotary (direct) MCF calculations. No cell service required.
Calculate final grades by inputting current scores and weight. Determine required score for a target grade. Adjust value and view calculated results instantly. Support for Retina displays and 64-bit devices.
Access exclusive training materials, connect with professionals in roles, and participate in community discussions. Track progress, join networking events, and share insights to grow skills.
Calculate Voltage, Current, Resistance, and Power using Ohm’s Law and ’s Law. Input values to solve for unknowns. Display results instantly. Includes formulas for calculations. Supports both direct and indirect circuit analysis.
Record network traffic including TCP, UDP, DNS, and HTTP. Apply rules based on domain, keywords, IP ranges, and URL patterns. Modify traffic with policy groups and intercept requests for analysis.