Learn Engineering & Technology — Calculator Tutorials & Guides
10 step-by-step guides for engineering & technology. Master calculation methods with detailed examples and practical tips.
Capacitor Calculator - Capacitance, Reactance & Energy
Compute capacitance, reactance, stored energy, and series/parallel combinations with this capacitor calculator. Useful for electronics engineers.
Electrical Calculator – Ohm’s Law, Power & Circuits
Calculate voltage, current, resistance, and power using Ohm’s Law. Solve series and parallel circuits with our electrical calculator.
Energy Usage Calculator – Track Home & Appliance Power
Calculate household and appliance energy consumption. Estimate electricity costs in kWh and discover savings with our energy usage calculator.
Ohm’s Law Calculator – Voltage, Current, Resistance
Use Ohm’s Law calculator to find voltage, current, resistance, and power. Apply V=IR formulas for electronics and electrical circuits.
How to Calculate Resistor Values - Color Codes, Series & Parallel
Learn to decode resistor color bands, calculate series/parallel networks, and size resistors for power safety with step-by-step examples.
How to Calculate Molar Mass - Step-by-Step
Compute molar mass from chemical formulae including hydrates and isotopes. Clear steps and examples.
How to Do Stoichiometry - Limiting Reagent & Yields
Balance equations, use mole ratios, find limiting reagent and compute yields with worked examples.
How to Calculate pH & pOH - Strong/Weak Acids
Calculate pH and pOH from concentration. Handle weak acids/bases with Ka and ICE tables, plus examples.
How to Calculate Subnets - CIDR, Mask & IP Ranges
Master IPv4 subnetting: calculate network, broadcast, and host ranges from CIDR or subnet mask. Includes IPv6 basics and practical examples.
How to Calculate Carbon Footprint - Complete CO₂ Emissions Guide
Learn how to manually calculate your carbon footprint from transportation, home energy, diet, and consumption with step-by-step formulas and examples.