Free to Use

Physics Calculator

Comprehensive physics calculations for kinematics, mechanics, electromagnetism, and thermodynamics with step-by-step solutions and detailed explanations

Kinematics - Motion Calculations

Velocity Calculator
v = d / t
Velocity
-
Enter distance and time
Acceleration Calculator
a = (v₂ - v₁) / t
Acceleration
-
Enter velocities and time
Displacement Calculator
s = v₁t + ½at²
Displacement
-
Enter initial velocity, acceleration, and time
Free Fall Calculator
h = ½gt² | v = gt
Free Fall Results
-
Enter time of fall

Mechanics - Force, Energy, and Momentum

Force Calculator (Newton's 2nd Law)
F = ma
Force
-
Enter mass and acceleration
Kinetic Energy Calculator
KE = ½mv²
Kinetic Energy
-
Enter mass and velocity
Potential Energy Calculator
PE = mgh
Potential Energy
-
Enter mass, height, and gravity
Momentum Calculator
p = mv
Momentum
-
Enter mass and velocity

Electromagnetism - Electric Circuits and Fields

Ohm's Law Calculator
V = IR | P = VI
Ohm's Law Results
-
Enter current and resistance
Electric Field Calculator
E = F/q | E = kQ/r²
Electric Field
-
Enter charge and distance
Capacitance Calculator
Q = CV | E = ½CV²
Capacitor Results
-
Enter capacitance and voltage
Magnetic Field Calculator
B = μ₀I/(2πr)
Magnetic Field
-
Enter current and distance

Thermodynamics - Heat, Temperature, and Gas Laws

Heat Transfer Calculator
Q = mcΔT
Heat Transfer
-
Enter mass, specific heat, and temperature change
Ideal Gas Law Calculator
PV = nRT
Temperature
-
Enter pressure, volume, and moles
Thermal Efficiency Calculator
η = W/Q_in = 1 - Q_c/Q_h
Thermal Efficiency
-
Enter work output and heat input
Stefan-Boltzmann Law Calculator
P = εσAT⁴
Radiated Power
-
Enter surface area, temperature, and emissivity

Physics Calculator Features

🔬
Comprehensive Coverage
Covers all major physics branches: kinematics, mechanics, electromagnetism, and thermodynamics
📐
Accurate Formulas
Uses standard physics formulas and constants for precise calculations and reliable results
⚡
Instant Results
Real-time calculations with detailed step-by-step solutions and formula explanations
📱
Mobile Optimized
Works perfectly on all devices - perfect for students and professionals on the go
🎓
Educational Focus
Designed for learning with clear explanations and practical examples for each calculation
🔒
Privacy Protected
All calculations performed locally - your data stays private and secure

Physics Branches Covered

🚀
Kinematics
Study of motion without considering forces. Calculate velocity, acceleration, displacement, and time relationships.
Key Formulas:
v = d/t
a = Δv/t
s = v₁t + ½at²
v² = v₁² + 2as
⚖️
Mechanics
Study of forces and their effects on motion. Calculate force, energy, momentum, and work relationships.
Key Formulas:
F = ma
KE = ½mv²
PE = mgh
p = mv
⚡
Electromagnetism
Study of electric and magnetic phenomena. Calculate voltage, current, resistance, and electromagnetic fields.
Key Formulas:
V = IR
P = VI
E = kQ/r²
B = μ₀I/(2πr)
🌡️
Thermodynamics
Study of heat, temperature, and energy transfer. Calculate heat transfer, gas laws, and thermal efficiency.
Key Formulas:
Q = mcΔT
PV = nRT
η = W/Q_in
P = εσAT⁴

How to Use the Physics Calculator

Kinematics Calculations

Example - Velocity Calculation:

A car travels 120 meters in 8 seconds. Calculate its velocity:

• Enter Distance: 120 m

• Enter Time: 8 s

• Result: v = 120/8 = 15 m/s

Mechanics Calculations

Example - Force Calculation:

A 5 kg object accelerates at 10 m/s². Calculate the applied force:

• Enter Mass: 5 kg

• Enter Acceleration: 10 m/s²

• Result: F = 5 × 10 = 50 N

Electromagnetism Calculations

Example - Ohm's Law Calculation:

Calculate voltage across a 10Ω resistor with 2A current:

• Enter Current: 2 A

• Enter Resistance: 10 Ω

• Result: V = 2 × 10 = 20 V, P = 20 × 2 = 40 W

Thermodynamics Calculations

Example - Heat Transfer Calculation:

Calculate heat needed to warm 2 kg of water by 50°C:

• Enter Mass: 2 kg

• Enter Specific Heat: 4186 J/kg·K (water)

• Enter ΔT: 50 K

• Result: Q = 2 × 4186 × 50 = 418,600 J

Essential Physics Formulas

Kinematics Formulas

v = d/t (velocity = distance ÷ time)
a = (v₂ - v₁)/t (acceleration = change in velocity ÷ time)
s = v₁t + ½at² (displacement with constant acceleration)
v² = v₁² + 2as (velocity-displacement relationship)

Mechanics Formulas

F = ma (Newton's Second Law)
KE = ½mv² (kinetic energy)
PE = mgh (gravitational potential energy)
p = mv (momentum)
W = Fd (work = force × distance)

Electromagnetism Formulas

V = IR (Ohm's Law)
P = VI = I²R = V²/R (electrical power)
E = kQ/r² (electric field strength)
F = qE (force on charge in electric field)
B = μ₀I/(2πr) (magnetic field around wire)

Thermodynamics Formulas

Q = mcΔT (heat transfer)
PV = nRT (ideal gas law)
η = W/Q_in (thermal efficiency)
P = εσAT⁴ (Stefan-Boltzmann law)

Real-World Applications

Engineering Design

Calculate forces, stresses, and material properties for structural design, mechanical systems, and safety analysis.

Automotive Industry

Analyze vehicle dynamics, engine performance, brake systems, and crash safety using kinematics and mechanics.

Electrical Engineering

Design circuits, calculate power consumption, analyze electromagnetic fields, and optimize electrical systems.

Aerospace Engineering

Calculate rocket trajectories, orbital mechanics, atmospheric entry, and spacecraft thermal management.

Energy Systems

Analyze heat engines, thermal power plants, renewable energy systems, and energy efficiency calculations.

Academic Research

Support physics education, laboratory experiments, research projects, and scientific investigations.

Medical Physics

Calculate radiation doses, imaging parameters, therapeutic energy delivery, and safety protocols.

Sports Science

Analyze athletic performance, projectile motion in sports, impact forces, and biomechanical optimization.

Frequently Asked Questions (FAQ)

How accurate are the physics calculations?
Our physics calculator uses standard scientific formulas and constants with high precision. Results are accurate for most practical applications, but always consider significant figures and real-world factors like friction, air resistance, and material properties.
Can I use this calculator for homework and exams?
Yes, this calculator is designed as an educational tool to help you understand physics concepts and verify your work. However, always check with your instructor about calculator policies for exams and understand the underlying principles.
What units should I use for calculations?
Use SI (metric) units for best results: meters (m), kilograms (kg), seconds (s), amperes (A), kelvin (K). The calculator assumes SI units unless otherwise specified. Always check unit consistency in your inputs.
How do I handle scientific notation inputs?
You can enter scientific notation using 'e' format (e.g., 1.6e-19 for 1.6 × 10⁻¹⁹). This is useful for very small or large values like electric charge, atomic masses, or astronomical distances.
Why don't my results match textbook answers exactly?
Small differences may occur due to rounding, different values of constants used, or simplified assumptions in textbook problems. Always consider the appropriate number of significant figures based on your input precision.
Can this calculator handle vector quantities?
Currently, the calculator handles scalar (magnitude-only) calculations. For vector problems, calculate the magnitude of each component separately, then use vector addition rules to find resultant vectors.
What constants are used in the calculations?
Standard physics constants: g = 9.8 m/s², k = 8.99 × 10⁹ N⋅m²/C², μ₀ = 4π × 10⁻⁷ H/m, σ = 5.67 × 10⁻⁸ W/(m²⋅K⁴), R = 8.314 J/(mol⋅K). These values are widely accepted in physics education.
How should I interpret negative results?
Negative results often have physical meaning: negative acceleration means deceleration, negative work means energy removal, negative charge indicates electron excess. Consider the physical context of your problem.
Can I use this for advanced physics topics?
This calculator covers fundamental physics concepts suitable for high school and introductory college physics. For advanced topics like quantum mechanics, relativity, or complex electromagnetic theory, specialized tools may be needed.
Is my calculation data stored or shared?
No, all calculations are performed locally in your browser. We don't store, save, or transmit any of your input data or results. Your physics calculations remain completely private and secure.

About This Physics Calculator

Our comprehensive physics calculator is designed to help students, educators, engineers, and professionals quickly and accurately solve physics problems across multiple branches of physics. From basic kinematics to complex thermodynamics, this tool provides reliable calculations with detailed explanations.

Why Choose Our Physics Calculator?

  • Comprehensive Coverage: Four major physics branches with 16+ specialized calculators
  • Educational Focus: Clear formula displays and step-by-step explanations for learning
  • Professional Accuracy: Uses standard physics formulas and constants for reliable results
  • User-Friendly Interface: Intuitive design that works perfectly on all devices
  • Real-World Applications: Practical examples and applications across multiple industries
  • Privacy Protection: All calculations performed locally - your data stays private

Whether you're solving homework problems, conducting research, designing systems, or exploring physics concepts, this calculator provides the tools you need for accurate and efficient calculations. The combination of theoretical knowledge and practical application makes it an invaluable resource for anyone working with physics.

Educational Disclaimer: While this calculator uses standard physics formulas and provides accurate results, always verify critical calculations with additional sources. Consider real-world factors like friction, air resistance, measurement uncertainty, and material properties. This tool is for educational and general use - consult professional engineering software for critical applications.