Work & Time Calculator


Enter values and click Calculate to see results.

About Work & Time Calculator

The Work & Time Calculator helps you quickly determine how long it takes for one or more people (or machines) to complete a task based on their individual work rates. It’s a useful tool for students, project managers, and professionals dealing with efficiency, workforce planning, or time optimization.

Work and Time Relationship

Work = Rate × Time Time = Work ÷ Rate When two people work together: 1 / Total Time = 1 / Time(A) + 1 / Time(B)

Work, time, and rate are directly related. If one person completes a task in 6 hours and another in 8 hours, working together they finish faster based on their combined work rates.

Example:

Input: Person A can finish a job in 6 hours, and Person B in 8 hours. How long will they take together?

Output: 1 / Total Time = 1/6 + 1/8 → Total Time = 3 hours 25 minutes (approx).

Steps to Use:

  1. Enter the number of workers or machines.
  2. Input the time each takes to complete the task individually.
  3. Select if they are working together or alone.
  4. Click 'Calculate' to get total work time and efficiency.

Frequently Asked Questions

What is the basic formula for Work and Time?

The basic relationship is Work = Rate × Time. Here, Rate is the portion of work done per unit time.

How can I calculate combined work time for two people?

Use the formula 1 / Total Time = 1 / Time(A) + 1 / Time(B). This gives the time taken when both work together.

Can this calculator handle multiple workers or machines?

Yes. You can input the time for each worker or machine, and the calculator combines their efficiencies automatically.

What units should I use for time?

You can enter time in any consistent unit — such as hours, minutes, or days — as long as all inputs use the same unit.

Where is this formula used?

Work & Time problems are common in aptitude exams, engineering planning, and productivity analysis.