Physics Tools – Small Tools. Big Help.

Welcome to SmallToolsOnline.com — your go-to toolkit for solving and understanding physics problems quickly and efficiently. Our collection of smart browser-based physics tools helps you calculate, convert, and analyze physical quantities instantly — all without installing any software or sending your data anywhere.

From simple unit converters and force calculators to advanced kinematics solvers, energy calculators, and wave equation tools, every tool runs directly in your browser using fast JavaScript processing.

Whether you're a student learning physics, a teacher preparing lessons, or a researcher verifying formulas — Small Tools Online helps you do it faster, smarter, and safer.

All Physics Tools

½mv²
Kinetic Energy Calculator
Calculate kinetic energy given mass and velocity.
mgh
Potential Energy Calculator
Compute gravitational potential energy (m×g×h).
Force Calculator
Use F = m × a to determine force from mass & acceleration.
P=F/A
Pressure Calculator
Calculate pressure from force and area.
Projectile Motion Calculator
Solve range, height and time of a projectile launched at an angle.
v=fλ
Wave Speed Calculator
Compute wave speed given frequency and wavelength.
V=IR
Ohm’s Law Calculator
Calculate voltage, current or resistance from Ohm’s law.
F=kx
Hooke’s Law Calculator
Determine spring force given spring constant and displacement.
F=Gm₁m₂/r²
Gravitational Force Calculator
Compute gravitational attraction between two masses.
ρ=m/V
Density Calculator
Calculate density from mass and volume.
vₑ=√(2GM/r)
Escape Velocity Calculator
Compute the speed required to escape a celestial body’s gravity.
Δt=Δt₀/√(1-v²/c²)
Time Dilation Calculator
Calculate relativistic time dilation for a given velocity.
Fₙ=ρVg
Buoyancy Calculator
Calculate buoyant force based on fluid density and volume.
T=2π√(L/g)
Pendulum Period Calculator
Compute the period of a simple pendulum.
F_c=mv²/r
Centripetal Force Calculator
Calculate centripetal force given mass, velocity & radius.
P=W/t
Power Calculator
Compute power from work and time.
τ=Fr
Torque Calculator
Calculate torque from force and lever arm.
ΔL=αL₀ΔT
Thermal Expansion Calculator
Compute change in length due to temperature change.
θi=θr
Reflection Angle Calculator
Calculate angle of reflection off a surface.
f′=f(±v/(v±vs))
Doppler Effect Calculator
Compute frequency shift due to relative motion of source/observer.
n₁sinθ₁=n₂sinθ₂
Refraction Index Calculator
Apply Snell’s Law to find angles or refractive index.
1/f=1/v+1/u
Lens Formula Calculator
Find image or object distance using the lens formula.
1/f=1/v+1/u
Mirror Formula Calculator
Determine image position for spherical mirrors.
P=1/f
Refractive Power Calculator
Compute optical power of a lens in diopters.
Q=mcΔT
Specific Heat Capacity Calculator
Find specific heat or energy required to change temperature.
Q/t=kAΔT/L
Thermal Conductivity Calculator
Calculate heat flow through materials.
P=VI
Electric Power Calculator
Find electrical power from voltage and current.
F=kq₁q₂/r²
Coulomb’s Law Calculator
Calculate electrostatic force between two charges.
E=F/q
Electric Field Calculator
Compute electric field intensity around a charge.
F=qvB
Magnetic Force Calculator
Determine magnetic force on a moving charge.
C=Q/V
Capacitance Calculator
Calculate charge storage capacity of a capacitor.
V=Ldi/dt
Inductance Calculator
Calculate induced voltage or inductance value.
τ=RC
RC Time Constant Calculator
Find time constant for resistor–capacitor circuits.
f=1/2π√(LC)
Resonant Frequency Calculator
Calculate frequency of resonance in LC circuits.
N=N₀e^-λt
Half-Life Calculator
Determine half-life and decay rate of a substance.
Decay
Radioactive Decay Calculator
Calculate remaining mass or activity after decay.
p=mv
Momentum Calculator
Compute linear momentum using mass and velocity.
J=Ft
Impulse Calculator
Determine impulse from force and time duration.
W=Fd
Work Done Calculator
Find work done by a constant force.
F=μN
Friction Force Calculator
Calculate frictional force using μ and normal force.
W=ΔE
Work-Energy Theorem Calculator
Find work done using change in kinetic energy.
MA=Fo/Fi
Mechanical Advantage Calculator
Calculate mechanical advantage of levers and pulleys.
η=Wout/Win
Efficiency Calculator
Compute efficiency of an energy or mechanical system.
ΔL=αLΔT
Linear Expansion Calculator
Find change in length of solids when heated or cooled.
Q/t=kAΔT/L
Heat Transfer Rate Calculator
Calculate conduction heat transfer rate across materials.
Rth=L/kA
Thermal Resistance Calculator
Find the resistance to heat flow in a material.
f=1/T
Frequency Calculator
Calculate frequency from time period of oscillation.
ω=θ/t
Angular Velocity Calculator
Find angular speed from rotation angle and time.
a=v²/r
Centripetal Acceleration Calculator
Compute acceleration of circular motion.
E=½mvₑ²
Escape Energy Calculator
Calculate total energy required for escape velocity.