5 Best Free Online Jet Lag Calculator Websites

Here is a list of best free online jet lag calculator websites. Jet Lag is a temporary physiological condition that causes sleeping issues. Jet lag mainly happens when you quickly move from one time zone to another as it affects the internal clock of the body also known as circadian rhythms. Our internal clock signals our body when to sleep and when to stay awake. Due to changes in time zones in a relatively short time, our body clock gets out of sync with the time of destination location which causes jet lag. To rectify or manage jet lag, users can use these online jet lag calculator websites.

These websites help users calculate the duration of jet lag duration and generate a custom sleep schedule to reduce the adverse effects of jet lag. To do that, these calculators consider various parameters like origin city name, destination city name, date of flight, arrival time, usual time to sleep, wake-up time, etc. Based on the provided information, a personalized sleep schedule is generated that highlights the gradual change in sleep and wake-up timings users need to make before, during, and after a flight. Some websites also generate schedules to use light therapy devices for the management of jet lag. To help new users, I have also included the steps to calculate jet lag in the description of each website. Go through the list to learn more about these calculators.

My Favorite Online Jet Lag Calculator Website:

gatewaypsychiatric.com is my favorite website as it generates a personalized sleep schedule for users to combat jet lag. Plus, it answers common queries related to jet lag calculation.

You can also check out lists of best free Oxygen Tank Duration Calculator, Bladder Volume Calculator, and Protein Creatinine Ratio Calculator websites.

Comparison Table:

Features/Website Names	Generates Sleep Schedule	Generates schedule to use light therapy device	Calculates jet lag duration
gatewaypsychiatric.com	✓	x	x
prokerala.com	✓	x	✓
wellnessproducts.ch	x	✓	x
re-timer.com	x	✓	x
sleepopolis.com	✓	x	x

gatewaypsychiatric.com

gatewaypsychiatric.com is a free online jet lag calculator website. This website helps users manage the effects of jet lag after moving from one timezone to another. It also generates a personalized sleep travel plan that covers sleep habit changes that users need to make before and after traveling from one time zone to another.

To calculate the jet lag, it uses your normal time to sleep, departure city name, departure time, destination city name, and arrival time. After the calculation, users get an 8-day chart highlighting the daily changes users should make to their sleeping habits to avoid jet lag. It also answers common queries related to the jet leg calculator. Now, follow the below steps.

How to perform jet leg calculation online using gatewaypsychiatric.com:

Go to this website and access the Jet Lag Calculator.
After that, enter the time at which you usually go to sleep.
Now, specify the origin and destination city names.
Next, submit the departure and arrival times and their dates.
Finally, click the Get Plan button to view a sleep adjustment plan to avoid jet lag.

Additional Features:

This website offers multiple Psychiatric services and multiple health-related blogs.

Final Thoughts:

It is a good online jet lag calculator website that generates a sleeping plan for users based on their flight schedule.

Pros	Cons
Generates a personalized sleep travel plan
Easy to use

Home Page

prokerala.com

prokerala.com is another free online jet lag calculator website. This calculator helps users calculate how much they will be jet lagged when flying from one time zone to another. It also offers a light therapy chart to help users manage and reduce jet lag. The light therapy chart contains a two-day schedule highlighting when to avoid bright light and when to get exposed to bright light. Besides this, it generates another chart that shows, how many hours your body clock is displaced when you are away from home. Now, follow the below steps.

How to calculate jet leg online using prokerala.com:

Visit this website using the given link.
After that, specify the origin and destination city names.
Next, specify the flight date and time.
Finally, click on the calculate Jetlag button to start the calculation process.

Additional Features:

This website explains jet lag and highlights all the remedies that users can try to reduce the jet lag.
It also contains tools like Flight Time Calculator, IRCTC Train Timings, World Timezone Converter, Travel Distance Calculator, and more.

Final Thoughts:

It is another good online jet lag calculator that helps users find out for how long they will get jet lag and what they can do to manage it.

Pros	Cons
Highlights the jet lag duration
Provides sun exposure and sun-avoid timings to manage jet lag

Home Page

wellnessproducts.ch

wellnessproducts.ch is another free online jet lag calculator website. This website uses the Departure and Arrival dates & times to generate a schedule to manage jet lag. The created schedule shows the time at which users need to use the Valkee HumanCharger device and for how long. A Valkee HumanCharger is a light therapy device that helps users manage their jet lag. It also lets users print the entire treatment plan. However, it doesn’t calculate the duration for which you might feel the jet lag. Now, follow the below steps.

How to calculate jet lag online using wellnessproducts.ch:

Launch this website and access the Jet Lag calculator.
After that, enter the Departure date and time.
Next, enter the Arrival date and time.
Now, submit the time difference between the origin and destination locations.
Finally, tap on the Calculate Treatment button to get the treatment plan and instructions.

Additional Features:

This website sells various wellness products and devices that users can purchase like Blood Pressure Monitors, Daylight Therapy, Pulse Oximeter, Inhalers, etc.

Final Thoughts:

It is another good online jet lag calculator website that helps users manage their jet lag through a light treatment plan.

Pros	Cons
Generates a custom treatment plan for jet lag	A Valkee HumanCharger device is needed by users

Home Page

re-timer.com

re-timer.com is another free online jet lag calculator website. This website helps users manage their jet lag when they are traveling from one time zone to another. To perform this calculation, it asks for various values from users like time at which they usually go to bed, wake-up time, origin city, destination city, and date of departure. Based on the provided values, it creates a schedule at which users need to use the re-timer light therapy glasses. Re-timer glasses help regulate sleep patterns to manage jet lag. Now, follow the below steps.

How to calculate jet lag online using re-timer.com:

Launch this website using the given link.
After that, enter sleep time, wake-up time, origin city name, and departure city name.
Next, enter the departure date.
Finally, submit all the details to view a schedule to wear re-timer glasses.

Additional Features:

On this website, users can learn more about re-timer glasses and choose to purchase them.

Final Thoughts:

It is another good online jet lag calculator website that generates a personalized schedule to wear re-timer glasses for the reduction of jet lag.

Pros	Cons
Generates a personalized schedule to weal re-time glasses	A re-timer glasses is needed by users

Home Page

sleepopolis.com

sleepopolis.com is yet another free online jet lag calculator website. This website offers a jet lag rooster calculator that uses the origin city name, destination city name, departure date & time, arrival date & time, usual sleep time, and wake time values to generate a jet lag avoidance plan. In the calculator, users can also specify when to start the shifting sleep schedule (after arriving, after departing on the plane, or up to n days before departing).

In the generated plan, users can view the time ideal for sleep, time ideal for light after waking, when to set their watch according to the destination time zone, etc. By following the plan, users can minimize their jet lag. Now, follow the below steps.

How to calculate jet lag online using sleepopolis.com:

Go to this website and open up the Jet lag Rooster tool.
After that, enter all the required details like origin city name, departing time, arriving time, etc.
Next, specify when you want to start shifting the sleep schedule.
Finally, click on the Calculate button to get the sleep schedule plan.

Additional Features:

This website offers multiple online calculators like Sleep Debt, Kids Sleep, jet lag sleep, and more.

Final Thoughts:

It is another good online jet lag calculator website that creates a personalized sleep schedule to combat jet lag.

Pros	Cons
Generates a personalized sleep schedule to combat jet lag
Easy to use

Home Page

Frequently Asked Questions

How long does a 10 hour jet lag last?

A 10-hour jet lag wouldn't typically be experienced because jet lag is related to crossing multiple time zones, not specific travel times. The bigger factor influencing jet lag is the number of time zones crossed. Instead of a duration based on flight time, a general rule of thumb suggests it takes 1-2 days per time zone crossed to adjust to the new environment. So, crossing 5 time zones might lead to 5-10 days of experiencing some jet lag symptoms, while crossing 2 zones might only result in 2-4 days of impact.

How do you calculate jet lag?

You can use online jet lag calculator websites to calculate the duration of jet lag and generate a sleep schedule that users can follow to reduce the impact of jet lag.

What are 2 symptoms of jet lag?

Disrupted sleep patterns and Digestive issues are the two main symptoms faced by people during jet lag.

How to avoid jet lag?

Gradually shift your bedtime and wake-up time in the direction you'll be traveling a few days before your trip. If traveling eastbound, try to get more morning light and avoid bright screens in the evening. If traveling westbound, prioritize evening light and limit bright light exposure in the morning.

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