Free UV-calculator
The Sundicator is easy to use. Just follow the simple steps outlined below and you know your safe sun protection time in a minute:
click the UV-index value (1-11)
choose your skin type
fill in the sun protection factor of your sunscreen
when it’s cloudy, click the cloud button
when you’re in the mountains, click the mountain button
click the result button to calculate
click the clock button on the result screen to set the alarm
Look for the UV-index at your place on a given day. Remember this index can change everyday, just as for example the maximum temperature does. You can find the UV-index in a local paper or on the internet. Go to the links section to find a site that returns the UV-index from all over the world.
| Type | Sunburn | Tan | Characteristics |
| I | always | never | pale skin, freckles, blond or red hair, blue or green eyes |
| II | usually | sometimes | white skin, blond hair, blue or green eyes |
| III | seldom | usually | white skin, usually dark hair and brown eyes |
| IV-VI | never | always | brown to dark skin, brown or black hair, brown eyes |
Disclaimer
The formulas in the calculator are based on information provided by the WHO and other sources (see links section). Sundicator.net or any of the mentioned sources cannot be held responsible for any consequence that may result from the use of the above mentioned UV-calculator.
Use your common sense when exposing yourself to the sun and listen to your doctor’s advice when it comes to suncare and safe sun tanning time.To use the UV-calculator, you need to know your skin type. Basically a low number means a higher risk of skin damage. Consult the above table if you don’t know what skin type you have.
If you’re not sure, rather underestimate your skin type. For example, you’re not sure whether you really are a type 3, then choose type 2. And ask your doctor the next time you visit him.
63 Comments »



March 15th, 2008 at 21:05
Great website!! Keep up the good work!!
April 18th, 2008 at 21:34
[...] effective is your SPF? Calculate how long you can stay in the sun with your [...]
April 23rd, 2008 at 14:49
[...] Más información | Calcula el tiempo que puedes estar al sol [...]
May 10th, 2008 at 8:13
[...] it’s cloudy, and whether you??re in the mountains. Gives you a resulting time and a countdown alarm.http://www.sundicator.net/uv-calculator/SPF Query ToolTests the supplied spf record to see if it is valid. This test does NOT look up the [...]
June 22nd, 2008 at 15:17
[...] Free UV-calculator [...]
June 27th, 2008 at 19:33
[...] Free UV-calculator [...]
July 11th, 2008 at 1:06
I wish I could download this to my Mac, or my iPhone so I have it when I’m not able to get on the net. (Great to have when I’m out on the water.)
October 23rd, 2008 at 8:29
Do you know how to calculate SPF theoretically?
For example, if there is 2% Titanium dioxide in the sunblock lotion, 2% of Titanium dioxide will give at least 2 SPF units
April 15th, 2009 at 2:37
[...] Two valuable resources for determining safe exposure without sunscreen are: weather.com’s Current UV indicator and the Sun tanning time indicator. [...]
May 1st, 2009 at 13:31
[...] Free UV-calculator [...]
May 3rd, 2009 at 16:16
[...] Free UV-calculator [...]
May 3rd, 2009 at 19:20
[...] Free UV-calculator [...]
May 4th, 2009 at 14:23
[...] Free UV-calculator [...]
May 5th, 2009 at 11:41
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May 5th, 2009 at 19:39
[...] Free UV-calculator [...]
May 8th, 2009 at 11:00
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May 8th, 2009 at 14:13
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May 8th, 2009 at 19:21
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May 9th, 2009 at 10:14
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May 10th, 2009 at 11:32
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May 10th, 2009 at 15:40
[...] Free UV-calculator [...]
May 10th, 2009 at 20:06
[...] Free UV-calculator [...]
May 11th, 2009 at 13:12
[...] Free UV-calculator [...]
May 12th, 2009 at 22:43
[...] Free UV-calculator [...]
May 13th, 2009 at 20:46
[...] Free UV-calculator [...]
May 16th, 2009 at 17:03
[...] Free UV-calculator [...]
May 18th, 2009 at 17:12
[...] Free UV-calculator [...]
May 20th, 2009 at 4:14
cool tool
May 21st, 2009 at 12:47
[...] Free UV-calculator [...]
May 21st, 2009 at 22:17
[...] Free UV-calculator [...]
May 22nd, 2009 at 8:00
[...] Free UV-calculator [...]
May 22nd, 2009 at 19:00
[...] Free UV-calculator [...]
May 23rd, 2009 at 11:07
[...] Free UV-calculator [...]
May 23rd, 2009 at 14:52
[...] Free UV-calculator [...]
May 24th, 2009 at 14:13
[...] Free UV-calculator [...]
May 24th, 2009 at 15:27
[...] Free UV-calculator [...]
May 24th, 2009 at 18:13
[...] Free UV-calculator [...]
May 25th, 2009 at 13:50
[...] Free UV-calculator [...]
May 25th, 2009 at 19:32
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May 27th, 2009 at 20:23
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May 30th, 2009 at 13:16
[...] Free UV-calculator [...]
May 30th, 2009 at 17:48
[...] Free UV-calculator [...]
May 31st, 2009 at 10:57
[...] Free UV-calculator [...]
June 2nd, 2009 at 12:49
[...] Free UV-calculator [...]
June 2nd, 2009 at 14:53
[...] Free UV-calculator [...]
June 8th, 2009 at 4:28
[...] Free tool to calculate your safe sun tanning time Sundicator net Posted by root 3 hours ago (http://www.sundicator.net) Yellow bullet free uv calculator fill in the sun protection factor of your sunscreen leave a comment name required mail will not be published required website powered by wordpress theme by jai nischal verma Discuss | Bury | News | Free tool to calculate your safe sun tanning time Sundicator net [...]
June 8th, 2009 at 14:04
[...] the sun is great, but overdoing it without protection can have serious consequences. Use this nifty sun calculator to find out how long you can stay in the sun with your SPF, check a weather report for the UV-index [...]
June 22nd, 2009 at 18:09
this is excellent! i’ve been looking for a tool like this that takes skin type into consideration. Great work!
July 22nd, 2009 at 15:48
[...] Más información: http://revista.consumer.es/web/es/19990701/salud/31160.php Video de promoción del protector solar: http://www.youtube.com/watch?v=lsAlBo6pyXI y en su versión original subtitulada http://www.youtube.com/watch?v=jMJngWNPAX8 Calculo del tiempo que se puede estar al sol según la piel, factor del protector… (en inglés). http://www.sundicator.net/uv-calculator/ [...]
August 8th, 2009 at 11:19
[...] Free UV-calculator [...]
August 8th, 2009 at 14:32
[...] Free UV-calculator [...]
August 18th, 2009 at 7:38
Thanks for introducing me to the calculator. Hope it will be useful me.
August 21st, 2009 at 6:13
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
August 21st, 2009 at 6:15
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
August 21st, 2009 at 6:48
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
August 21st, 2009 at 6:50
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
August 21st, 2009 at 7:05
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
August 21st, 2009 at 7:11
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
August 21st, 2009 at 7:22
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
August 21st, 2009 at 7:26
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
August 21st, 2009 at 7:37
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
September 10th, 2009 at 8:38
[...] online calculators such as this one: http://www.biobalance4women.com/skin_type.html. There are even sunscreen and UV calculators to help you find the best sun protection for your skin type. A product that works perfectly for [...]
September 30th, 2009 at 19:36
This is great! Many people forget even if its cloudy you can still get a wicked sun burn cause the UV factor is high.