Use this tool to convert a period of time in one measurement unit to the equivalent in multiple units including years, months, weeks, days, hours, minutes, seconds, centiseconds (1/100th sec) and milliseconds.
Time & Frequency Calculators
Online web tools for time, period or frequency measurement conversions and calculations
Use this calculator to determine the elapsed time from the total energy transferred or work done and the power output t=W/P
Calculate the time it takes for an electromagnetic wave to travel in a vacuum by entering the distance to the emission source t=d/c₀
Calculate the frequency of an electromagnetic wave by entering a value for the corresponding energy per photon for the em wave f=E/h
Calculate the frequency of an electromagnetic wave in a vacuum by entering a value for the corresponding wavelength f=c₀/λ
This conversion tool will convert a period of time duration from one measurement unit to another and display a conversion table.
This conversion tool will convert a frequency value into different measurement units and display conversion scale related to the converted value.
Estimate travel time using distance to destination and average speed, and display a conversion table for distance vs time with a constant speed, t=d/v
This tool will convert the period to the equivalent frequency value, by calculating the number of cycles or revolutions per unit period of time from the time it takes to complete one full cycle or revolution, f=1/T, ω=2π/T
This tool will convert frequency to a period by calculating the time it will take to complete one full cycle or revolution at the specified frequency, T=1/f, T=2π/ω
Calculate elapsed time for total mass to flow at a set rate, and show a conversion chart for mass vs flow rate which refreshes when an input is changed, t=m/ṁ
Calculate the amount of elapsed time from the flow rate and the total volume transferred, plus display a conversion chart for volume vs elapsed time, t=V/Q
This calculator will estimate the amount of time it will take a machine of a specified width and speed to completely process an area of land, t=A/wv