Tier: 10-A
Name: Tanjiro Kamado
Origin: Demon Slayer
Sex: Male
Age: 13 years old
Classification: Human
Dimensionality: 3-D
Attack Potency: Athlete level (Comparable to his durability)
Durability: Athlete level (Could shrug off fairly large falls and fight off a demon with enhanced strength, which would be extremely difficult for a regular human. He could even withstand harmful blows in an environment that made it difficult for him to breathe)
Striking Strength: Athlete Class
Lifting Strength: Average Human (Constantly carries around Nezuko Kamado, while she was in the form of a young girl)
Travel Speed: Athletic Human (Walks too fast for his younger siblings to keep up, and could somewhat keep up with a trained Demon Slayer, although it was very difficult for him)
Combat Speed: Likely Superhuman (Took out his axe and attacked with it all in a split moment, faster than a demon—who are far superior to regular humans—could react)
Reaction Speed: Likely Superhuman (Could somewhat react to an attack from Giyu Tomioka, who was later shown to move too fast for an untrained eye to detect)
Stamina: Very High (Was able to make it down a mountain while enduring several traps, despite being already exhausted from running an extremely long distance and unable to breathe properly)
Range: Standard Melee, Extended Melee with Hand-Axe
Intelligence: Gifted (Even when greatly unexperienced, Tanjiro was able to come up with and preform a combative strategy that was enough to impress Giyu Tomioka, who is a Demon Slayer with several years of fighting experience)
Key: Post-Final Selection Arc | Post-Rehabilitation Training Arc
Tier: 9-A, higher with Sun Breathing | At least 9-A, higher with Sun Breathing, 8-C with Demon Slayer Mark
Name: Tanjiro Kamado
Origin: Demon Slayer
Sex: Male
Age: 15 years old
Classification: Human, Demon Slayer
Dimensionality: 3-D
Attack Potency: Room level (After training with Sakonji Urokodaki, Sabito, and Makomo, Tanjiro has become far stronger than before. He was able to cut a large boulder in half, which required this much power. He later overpowered the Hand Demon, who destroyed a large chunk of earth), higher with Sun Breathing (Was powerful enough to cut through Rui's most durable threads, when he is usually unable to cut through even Rui's weaker threads. He later nicked Rui's neck which is even more durable than his threads) | At least Room level (Has gotten stronger than before, due to his training in the Butterfly Mansion; this improvement is even recognized by a Pillar shortly after his fight with Daki & Gyutaro), higher with Sun Breathing (Cut through Daki's sash, which was even more durable than the one Tanjiro had a hard time cutting through earlier), Building level with Demon Slayer Mark (Activating the Demon Slayer Mark against Gyutaro summoned one hundred times Tanjiro's usual strength)
Durability: Room level | At least Room level
Striking Strength: Room Class, higher with Sun Breathing | At least Room Class, higher with Sun Breathing, Building Class with Demon Slayer Mark
Lifting Strength: Average Human | Above Average Human (Could casually carry around lots of baggage, and was condiered very strong for doing so)
Travel Speed: At least Superhuman (As a Demon Slayer should be similar to Giyu Tomioka, who could move faster than an untrained eye could detect) | At least Superhuman, likely higher (Is able to catch up with Kanao Tsuyuri, who he could not catch prior to training)
Combat Speed: Transonic, higher with Sun Breathing (Tanjiro is stated to attack quicker with Sun Breathing) | At least Transonic, higher with Sun Breathing
Reaction Speed: Transonic (Reacted to and dodged an attack from Kyogai, whose attacks appear at the same speed as the sound of a drum beat; the standard speed of sound is around 340 m/s), higher with Sun Breathing | At least Transonic (Is able to tag Kanao Tsuyuri, who he could not tag prior to training), higher with Sun Breathing
Stamina: Very High | Peak Human (His base stamina is directly stated to have increased. He had enough stamina to destroy a giant gourd with his breath alone, when even destroying a small gourd seemed unfathomable to him before)
Range: Standard Melee, Extended Melee with Nichirin Sword, higher with Water and Sun Breathing
Intelligence: Gifted
Key: Swordsmith Village Arc | Pillar Training Arc | Infinity Castle Arc | Sunrise Countdown Arc
Tier: At least 9-A, higher with Sun Breathing, 8-C with Demon Slayer Mark | 8-C | 8-A | At least 8-A
Name: Tanjiro Kamado
Origin: Demon Slayer
Sex: Male
Age: 15 years old, 17 years old (Chapter 204)
Classification: Human, Demon Slayer
Dimensionality: 3-D
Attack Potency: At least Room level, higher with Sun Breathing, Building level with Demon Slayer Mark | Building level (Through his Pillar Training, the Demon Slayer Mark has become Tanjiro's base form) | Multi-City Block level (Giyu Tomioka states that Tanjiro's power matches that of a Pillar. He should thus be similar to Kanao Tsuyuri, who was also compared to the Pillars; Kanao is superior to a severely weakened Doma, who could instantly create a giant ice sculpture) | At least Multi-City Block (Should be stronger than before, as he was able to keep up a marathon fight with Muzan Kibutsuji, who is far stronger than any demon before him and could take on several Pillars simultaneously)
Durability: At least Room level | Building level | Multi-City Block level | At least Multi-City Block level
Striking Strength: At least Room Class, higher with Sun Breathing, Building Class with Demon Slayer Mark | Building Class | Multi-City Block Class | At least Multi-City Block Class
Lifting Strength: At least Above Average Human | Class 25 (Grew strong enough to push a large boulder across a town) | Class 25 | Class 25
Travel Speed: At least Superhuman, likely higher. High Hypersonic with Full Focus Mode (Copies Zenitsu Agatsuma's Thunder Breathing speed using Full Focus Mode, which allows for him to run far faster than usual; Zenitsu could move this quickly with Thunder Breathing) | At least Superhuman, likely higher. High Hypersonic with Full Focus Mode | At least Superhuman, likely higher. High Hypersonic with Full Focus Mode | At least Superhuman, likely higher. High Hypersonic with Full Focus Mode
Combat Speed: At least Transonic, higher with Demon Slayer Mark (Is directly stated to be faster than before) | At least Transonic (His reflexes have gotten even faster than before) | At least Transonic, higher with Transparent World | At least Transonic, higher with Transparent World
Reaction Speed: At least Transonic, higher with Demon Slayer Mark | At least Transonic | At least Transonic, higher with Transparent World (Transparent World slows Tanjiro's perception of time, allowing for him to react faster) | At least Transonic, higher with Transparent World
Stamina: Peak Human | At least Peak Human (Tanjiro's stamina has improved with Pillar Training) | At least Peak Human | At least Peak Human
Range: Standard Melee, Extended Melee with Nichirin Sword, higher with Water and Sun Breathing
Intelligence: Gifted (Although Tanjiro himself has only been fighting for a few years, his experiences were stated to be comparable to upwards of ten years of intense combat training)
Tier: At least 8-A
Name: Tanjiro Kamado
Origin: Demon Slayer
Sex: Male
Age: 15 years old
Classification: The Perfect Demon
Dimensionality: 3-D
Attack Potency: At least Multi-City Block level (Was stated to have become the strongest demon, even more powerful than Muzan Kibutsuji; Muzan was far beyond the strength of the Pillars)
Durability: At least Multi-City Block level
Striking Strength: At least Multi-City Block Class
Lifting Strength: At least Class 25
Travel Speed: At least Superhuman, likely far higher
Reaction Speed: At least Transonic, likely far higher
Stamina: Limitless (Demons do not tire)
Range: Standard Melee, Tens of Meters with tendrils
Intelligence: Gifted