There is about 2 to 3 meta you can scale Kakashi's speed. The first and lowest meta for Kakashi's speed is Lightning timer because he is able to tag and blitz Lightning. This is about sub relativistic to light speed.
No. Look at this illustration. Kakashi slices lightning here, but his arm only moves about 3 feet while the lightning bolt moves 1 mile (just random numbers for the sake of this argument). That puts Kakashi's speed at a tiny tiny fraction of the speed of actual lightning.
It was stated close to lightspeed, not light speed. Kakashi still doesn't have any lightspeed feats.
Speed: Massively Hypersonic (Capable of reacting to a lightning bolt, which move at 220,000 miles per hour.) Durability: Town Level (Could survive strikes from Zabusa's executioner's blade, which is a notoriously dangerous sword. Zabusa is comparable to Kakashi.) Stamina: Extremely high.
Sasuke is yet another strong character in the Naruto series who eventually surpassed Kakashi. Sasuke was so strong that he was able to perform jutsus like Indra's Arrow which has similar, if not the same destructive capabilities compared to Naruto's Six Paths: Ultra Big Ball Rasenshuriken.
With the power of Kamui and strength great enough to harm even Kaguya Otsutsuki, Kakashi became nearly unmatched. Although Guy was pretty powerful in his Eighth Gate, Kakashi's intangibility due to Kamui meant that there was absolutely nothing he could do to defeat him.
Konoha's Yellow Flash, Minato Namikaze, was the fastest shinobi in his lifetime. He possesses natural speed and dominant skills that foreshadow the capabilities of his powerful opponents. Minato mastered the Flying Thunder God technique to such an extent that he surpassed its creator, Tobirama.
Kaguya Otsutsuki was the strongest known character in Naruto who was a master of all the arts, including genjutsu. Like Madara Uchiha, Kaguya had the power to cast the Infinite Tsukuyomi, a powerful genjutsu that trapped the entire populace into a world of illusions.
Despite this, she pales in comparison to Kakashi Hatake. Kakashi is a very fast, and shrewd shinobi, so for him to let Tsunade hit him in the head is preposterous. Furthermore, Kakashi's offensive powers, such as Kamui, far surpass that of Tsunade's. If the two ever fight, Kakashi would emerge as the victor.
With this power at his disposal, Kakashi can make quick work of almost anyone, and Sakura is no exception. In spite of her great power and massive chakra resources, Sakura won't stand a chance against Kakashi, thanks to his near-invincibility and godly speed attributed to him by Kamui.
Have an overall lazy demeanor, yet quick to action when needed. Kakashi always acts half asleep but in truth he is always alert for the slightest thing out of the ordinary.
With Naruto Uzumaki, the Seventh Hokage, being considered the strongest of all time, it is quite clear that the weakest of all Hokage is one of Kakashi Hatake and Tsunade Senju.
The truth is, compared to other Jonin, Kakashi is not actually low on chakra reserves. In fact, he has a pretty high capability. The weakness comes when battling the best villains in the series. Kakashi does not match up to the strongest and most gifted of legendary shinobi.
As an Otsutsuki member, Kaguya is the strongest character in the Narutoverse. However, after consuming the entire Chakra fruit for herself from the God tree, she attained godly feats, making her an unstoppable force in Naruto.
Kakashi is a master of over a 1000 jutsu but these are some of his rarest techniques. Kakashi Hatake is one of the most powerful characters in the Naruto world. Known to have been a prodigy from a very young age, Kakashi grew up to become one of the very strongest ninjas to have ever existed in Konohagakure.
One of the strongest known Kekkei Genkai in Naruto, the Rinnegan is the rarest of the Three Great Dojutsu.
His notoriety as the copycat ninja and Chidori creator bulked up the legends of his strength. Many fans cannot imagine him being beaten. Kakashi is a master of the Sharingan and wins most of the battles he is involved in over the series. However, all of this strength does not mean other shinobi are not stronger.
4 Kakashi Is Capable Of Opening At Least The First Gate
Kakashi may have criticized Guy, but he himself was able to unlock the first gate.
Kamui Raikiri is the strongest known Jutsu of Kakashi Hatake. Combining the powers of Kamui with that of a Raikiri enhanced with Six Paths chakra, Kakashi was able to create a surefire technique powerful enough to injure even the likes of Kaguya Otsutsuki.