Fizică & Mecanică Tehnică
Classical Newtonian kinematics, ballistics, electromagnetism, Ohm's law, fluid mechanics, and harmonic oscillation solvers.
Projectile Motion & Ballistic Trajectory Calculator
Calculate ballistic flight trajectory, maximum apogee height, total hang time, and horizontal ground range under gravitational acceleration.
Kinetic Energy & Linear Momentum Calculator
Calculate translational kinetic energy (Joules, ft-lbs), linear momentum, and relativistic velocity inversions from mass and velocity.
Ohm's Law & Electrical Power (PIVR) Calculator
Calculate Voltage (V), Current (I), Resistance (R), and Electrical Power (P) with bidirectional four-quadrant PIVR inversions.
Density, Mass & Volume Calculator
Calculate material density (ρ), total mass, and displacement volume with bidirectional inversions and material reference library.
Simple Pendulum Period & Harmonic Frequency Calculator
Calculate pendulum period (T), natural frequency (Hz), angular frequency (rad/s), and local gravitational acceleration (g).
Electric Vehicle (EV) Charging Cost & Range Calculator
Calculate exact dollar cost to fully charge an electric car at home versus public DC fast chargers, cost per mile, and monthly charging expense.
Vehicle Towing Capacity & Tongue Weight Calculator
Calculate safe legal towing capacity, Gross Combined Weight Rating (GCWR), allowable trailer weight, and mandatory 10-15% tongue weight.
Truck Payload Capacity & Cargo Safety Margin Calculator
Calculate actual remaining payload capacity from Gross Vehicle Weight Rating (GVWR), curb weight, aftermarket accessories, and passenger weight.
Gas Mileage (MPG / L/100km) & Fuel Cost Calculator
Calculate exact gas mileage in US MPG, Imperial MPG, and Liters per 100km, cost per mile, and annual fuel expense.
Tire Size Comparison & Speedometer Error Calculator
Calculate tire diameter, sidewall height, revolutions per mile, and exact speedometer error when changing tire sizes.
Horsepower & Torque Conversion Calculator
Convert between rotational Torque (lb-ft or N·m) and Mechanical Horsepower (HP / kW) at any engine RPM, proving the 5,252 RPM crossover law.
Quarter-Mile Elapsed Time (ET) & Trap Speed Calculator
Calculate drag racing 1/4 mile elapsed time (ET) and finish trap speed from vehicle curb weight and wheel horsepower using the iconic Hale and Fox formulas.
Engine Displacement & Cylinder Volume Calculator
Calculate total internal combustion engine displacement in Cubic Centimeters (cc), Liters (L), and Cubic Inches (CID) from bore, stroke, and cylinder count.
Engine Static Compression Ratio Calculator
Calculate static compression ratio (CR) from cylinder swept volume, combustion chamber cc, head gasket thickness/bore, and piston dome/dish volume.
Transmission Gear Ratio & Vehicle Speed at RPM Calculator
Calculate vehicle road speed (MPH / km/h) at any engine RPM for each transmission gear, axle final drive ratio, and tire diameter.
Marine Boat Fuel Burn & Range Calculator
Calculate marine boat fuel burn rate in Gallons Per Hour (GPH), cruising range in nautical miles (NM), and fuel costs with safe reserves.
Aviation Crosswind & Headwind Component Calculator
Calculate exact runway crosswind component and headwind/tailwind component from wind speed, wind direction, and magnetic runway heading.
Aircraft Rate of Climb & Climb Gradient Calculator
Convert between Vertical Speed Rate of Climb (Feet Per Minute - FPM) and Climb Gradient in feet per nautical mile (ft/NM) and percent slope.
RV & Marine Battery Amp Hour & Inverter Runtime Calculator
Calculate deep cycle battery runtime in hours from total appliance AC watt load, battery voltage, amp hour capacity, and depth of discharge (DoD).
Vehicle Vinyl Wrap Material & Roll Calculator
Calculate exact linear feet and square feet of vinyl wrap film required for full vehicle wraps, accounting for bumpers, roof, and 20% waste margin.
Vehicle Braking & Stopping Distance Physics Calculator
Calculate total stopping distance in feet from initial speed, driver perception-reaction time, and road friction coefficient (dry, wet, snow, ice).
Motor Oil Change Interval & Maintenance Cost Calculator
Calculate optimal motor oil change intervals based on mileage, synthetic vs conventional oil, operating duty cycle, and annual maintenance budget.
RV Travel Trailer Tongue & Hitch Distribution Calculator
Calculate travel trailer hitch weight distribution, weight transfer to front steer axles, and prevention of trailer fishtailing.