What is average velocity?

Total displacement (change in position) divided by total time. It is a vector quantity (direction matters for displacement).

Use consistent units (e.g. m and s gives m/s).

What if time is zero?

Time cannot be zero; the calculator will not divide by zero.

Calculate average velocity as total displacement divided by total time.

Total displacement

Total time

What is average velocity?: Total displacement (change in position) divided by total time. It is a vector quantity (direction matters for displacement).
What units?: Use consistent units (e.g. m and s gives m/s).
What if time is zero?: Time cannot be zero; the calculator will not divide by zero.

Celsius to Fahrenheit Converter

Convert Celsius to Fahrenheit and Fahrenheit to Celsius instantly. Free temperature converter.

Tip Calculator

Calculate tip and split the bill. Enter bill amount, tip percentage, and number of people.

Roman Numeral Converter

Convert numbers to Roman numerals and Roman numerals to numbers. Supports 1–3999.

Combinations Calculator

Calculate C(n,r) — the number of ways to choose r items from n without order. Uses n!/(r!(n-r)!).

Combinations with Replacement Calculator

Calculate the number of ways to choose r items from n with repetition allowed. Formula: C(n+r-1, r).

Even Permutations Calculator

Count how many permutations of n objects are even (expressible as an even number of swaps). For n ≥ 2, equals n!/2.