Velocity Calculator

Distance Covered

Acceleration

Average Velocity

To Calculate

Distance

m ▾

Time

sec ▾

To Calculate

Initial Velocity

m/s ▾

Time

sec ▾

Acceleration

m/s² ▾

Velocity Calculator (Physics)

Use this velocity calculator to determine the velocity of an object based on the distance and time taken to cover it. In addition to this, our calculator allows you to make the following calculations for different terms related to velocity, including:

Distance Covered

✦ If distance 'd' and time 't' are given

Acceleration

✦ If initial velocity V_i, final velocity V_f, and time t are given.

Final Velocity

✦ If initial velocity V_i, acceleration a, and time t are given.

Initial Velocity

✦ If acceleration a, time t, and final velocity V_f are given.

Time

✦ If initial velocity V_i, final velocity V_f, and acceleration a are given.

Average Velocity

✦ If multiple velocities v and times t are given.

What is Velocity?

Velocity describes how fast an object moves in a particular direction over time.

It is a vector quantity that has both magnitude and direction but this is different from speed which only describes how fast something is moving without direction.

Symbol: v
Dimension: LT^-1
SI Unit: meters per second (m/s)

Velocity Formula

Velocity = Distance / Time

Where:

Distance: Total distance traveled by the object
Time: Total time taken to cover the distance

Final Velocity (V_f)

Velocity after a certain time of acceleration can be calculated when initial velocity (u), acceleration (a), and time (t) are known:

V_f = u + a t

Average Velocity (V_avg)

Our velocity calculator also takes acceleration and time to automatically calculate the velocity.

V_avg = (v₁ × t₁ + v₂ × t₂ + …) / total time

Other Common Units of Velocity

Unit	Equivalent in km/h
km/h	1.0000
knot	1.8520
ft/s	1.0973
ft/min	0.0183
cm/s	0.036
in/s	0.09144
m/h	0.0036
mph	1.6093
yd/s	3.276
Speed of light (c)	299,792,458 m/s (constant)

Examples of Velocity

The speed of a train in a specific direction
The rate of water flow from a faucet in one direction
The motion of a river’s current
A car moving with a known initial or final speed
Rotation of the Earth around the Sun
The velocity of a ball after being hit by a bat

These physical scenarios involve changing distance with time. The velocity equation v(d/t) calculator can help you figure out the speed in particular directions for all these conditions.

How is Velocity Different From Speed?

Velocity is the rate at which an object changes its position in a specific direction, while speed is the rate of measuring how quickly an object moves.

For Example, a cycle rider covers a distance of 10km/hr along a road. If we describe in a straight path the cycle rider travelling in a west direction, that is its velocity.

What are the Different Applications of Velocity Calculator?

Everyday Use

Trip Planning: You can calculate velocity, distance, and time for different trips like cycling, walking, driving, etc.
Sports Performance: The tool can help in analyzing the speed of athletes during various sports.

Science & Engineering

Kinematics: You can solve motion problems involving velocity, displacement, and acceleration using the core equation (v=d/t)
Projectile Motion: Trajectory analysis of an object considering its initial speed, direction, and velocity
Fluid Mechanics: Calculate fluid speed and its directions within the piping channels.

Specialized Fields

Aviation: Air traffic controllers and pilots use a velocity calculator to calculate takeoff speed and relative positions of the aircraft
Ballistics: Find the velocity of the projectiles fired from firearms for various engineering and forensic purposes
Robotics: Velocity calculations can help in programming robots to move at a certain speed, thereby covering specific distances over time
Astronomy: The tool can help astronomers analyze the planetary motion based on the speed and direction of revolutions
Animation: Gaming developers use velocity calculations to create realistic motion simulations for any game

FAQs

What causes a change in velocity?

According to Newton’s 1st law of motion, Force is the major parameter that causes a change in either speed or direction. Thus, it causes a change in velocity. The calculator for velocity can function to figure out how a change in force affects the motion of an object by determining the final velocity.

Can velocity be negative?

Yes, velocity can also be negative when an object travels in a direction opposite of positive. Suppose you have east as a positive direction, then a velocity of -20 m/s means the object is moving 20 m/s westwards.

How is velocity affected by external forces?

External forces can greatly affect the velocity of objects. These forces can arise in multiple cases, including:

Increased speed (e.g., When you apply force to move an object)
Decreased speed (e.g., When throwing a ball in the upward direction)
Directional change (e.g., When a baseball is being hit)
Combination of both (e.g., When an aircraft accelerates up in the sky)

How to find velocity without time?

Use the equation of motion under constant acceleration:

v² = u² + 2as

v = Final velocity
u = Initial velocity (0 if unknown)
a = Acceleration
s = Distance traveled

How to calculate speed from velocity?

If a car moves at a velocity of 150 meters per second in the east direction, its speed will be:

Speed is the magnitude of velocity:

Speed = |Velocity|

Example: 150 m/s east → Speed = 150 m/s

References

Wikipedia: Constant velocity vs acceleration
ThoughtCo: What is Velocity in Physics

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EN	TR	PL
DE	JA	CS
PT	FR	ES
IT	RU	KO
ID	AR	FI
ZH	TH	VI
NO	HU	BG
SV	NL	EL