Online Engineering Calculators, formulas and Tools Free
Professional-grade tools for Mechanical, Electrical, and Civil engineering, plus all types of unit conversion. However, it will delete from the most recently inputted character to the oldest inputted character. It will not only clear the numbers and symbols you’ve put in for your current calculation but will also clear the answer cache. If you wish to use the previous answer in your next calculation, do not use this button. Negative SignThe negative sign button (-) can be used to change the sign of the number.
To use this function, input a number first that would represent “y” and click the “yx“ button. The yx is a function that raises a number “y” to the power of a number “x”. To use this function, click the “atan” button of this scientific calculator.
In a world where precision matters, having the right tools at your fingertips is crucial. How to calculate voltage drop , thermodynamics, structural stress analysis, and materials property calculators. Common values are built into many calculators, but verify with actual material certificates for critical applications.
EngCal is built for practical engineering calculations in electrical design, backup power, energy analysis, solar planning, and HVAC estimation. Simple circuit and component tools for students, technicians, and quick bench checks. Protection, current, cable, and fault-level tools for practical electrical design work.
We understand the unique challenges engineers face, and our calculators are crafted with precision and expertise. There are no hidden fees or subscriptions – just instant access to the tools you need without breaking the bank. That’s why our online engineering calculators are powerful and completely free to use.
This connected structure makes the site easier to use and helps users find the next relevant calculation without starting over. The calculator library is organized for students, technicians, and engineers who need reliable tools for common engineering tasks. Instead of switching between spreadsheets, notes, and separate tools, users can move from one calculation to the next in one place.
Uses industry-standard engineering formulas and design codes for accurate professional calculations Comprehensive engineering calculations for structural, electrical, mechanical, and materials engineering with professional-grade formulas and detailed solutions From basic arithmetic to complex equations, handle every calculation with ease and precision.
Get accurate results easily with our advanced scientific calculator. Start with one calculator, then continue through related tools for design checks, sizing, planning, and energy estimates. For building and energy topics, users can move between HVAC load, panel load schedule, and energy cost saving tools. Each calculator is supported with formulas, variable definitions, units, examples, and related pages to make results easier to understand.
A more complicated formula for calculating the pressure drop in compressed air pipe lines (using same values as the link) No software to download, setup, configure, or install. Its worldwide presence powers the company’s outstanding service and efficient, comprehensive global supply chain solutions. By launching this suite, Future Electronics enhances its digital offering while supporting engineers with practical tools and reinforcing its position as a key resource in the electronics design ecosystem. On supported pages, users will see supplier branding integrated directly within relevant tools, highlighting technologies in real-world application contexts.
Because engineering values often come from mixed measurement systems, built-in unit conversion matters. If you’ve mistyped something and want to delete only your most recent input, use the delete button, which is denoted with the leftward facing arrow with the “X” in it. The letter “C” denotes clear, which will clear all current input and memory of previous actions. To use this, click the “-” button first and input the number. The scientific notation or “EE” button helps in inputting very large or very small numbers. LogarithmThe logarithm of a number “x” is the exponent “y” of the base “b” of the logarithm that would produce the number “x”.
These guided starting points help new visitors find the right tools faster and give returning users a quicker path back into their workflow. Check area, time, volume, and input power carefully. It solves force, work, power, pressure, stress, strain, density, flow rate, torque, and efficiency using one interface. The graph adds a quick visual summary so trends are easier to inspect during comparison.
To use this function in the scientific calculator, input first a number and click the “1/x” button. Yes, our calculators are designed for all levels—from civil engineering students who are learning basic concepts to professionals who need reliable tools for daily tasks. Whether you're a student, engineer, or contractor, these calculators are essential for efficient project planning. This essential tool for system design is based on the fundamental continuity equation, critical for HVAC and piping.
BMI, BMR, calorie intake, body composition, heart rate zones, and personal fitness tracking tools. Amortization schedules, ROI models, compound interest, and investment planning calculators. High-precision unit conversion spanning physics, chemistry, and engineering — from angstroms to light-years.
From cement and brick calculations to steel weight and concrete measurements, these tools help you get accurate results quickly and easily. Calculate voltage, current, and resistance quickly using one of the most essential formulas in electrical engineering. Fast and accurate calculators for electrical, electronics, power systems, and energy analysis. Solve circuit analysis problems, apply Ohm's law, and calculate power, voltage and current across resistor networks with precision. To use the logarithm function of this scientific calculator, click the “LOG” button and input the number.
I’ve created this website to offer highly accurate online calculators that don’t just give you a result—but show you every step of the calculation process. From the scientific calculator to the unit converters, CalculatorsEdge has become my go-to study companion. The tools are simple, fast, and the unit conversions help me avoid mistakes on tight deadlines. The engineering calculators are clear, accurate, and save me from digging through handbooks every single time.