Inertia in Escape from Tarkov: How Weight and Strength Affect Movement

Inertia is the movement system in Escape from Tarkov that makes your character slow to start, slow to stop and slow to change direction, and the effect grows with the weight of your equipment. It was added in patch 0.12.12.0.16029 on 12 December 2021 and has been rebalanced several times since, most recently in the PvE settings in October 2025.

The history below is built from the official patch notes collected on the Escape from Tarkov wiki and from the wiki's skill pages, up to patch 1.3.0 of late October 2026.

What inertia changes

The 12 December 2021 notes list five situations where inertia shows up: walking and strafing, sprinting, sharp turns while sprinting, landing after a jump or fall, and leaning and sidestepping. The heavier your gear and the lower your Strength skill, the more of this you feel:

• starting from a standstill takes longer to reach full speed
• stopping takes longer to slow down
• reversing direction takes longer on both the slow-down and the speed-up
• sharp sprint turns cost more movement speed
• landing slows you down more and for longer
• leaning, returning from a lean and sidestepping are slower

The same notes say that crouching and standing up also take longer when you are overloaded, and standing up drains stamina.

How weight and Strength set the effect

Strength level	Inertia starts to rise at	Inertia reaches its maximum at
0	0 kg of equipment	70 kg
Elite	10 kg of equipment	80 kg

These thresholds come from the 2021 notes. Later patches reduced base inertia strength (2024) and its dependence on carried weight (PvP settings of the wipe running then, moved to PvE on 22 October 2025) without publishing new kilogram values, so read the table as the shape of the curve, not exact current numbers. At a low skill level there is no free weight: the curve starts at the first kilogram. The Strength skill page on the wiki also lists the physical effects of the skill: +0.4% movement and sprint speed per level (+20% at Elite) and +0.6% carry weight per level (+30% at Elite, a 100 kg total). At Elite, weapons on the sling and on the back no longer count toward character weight, which lowers the inertia load directly. You raise Strength by walking or sprinting while overweight, and Endurance by moving while not overweight.

Two other systems are often confused with inertia. Overweight is a status effect with its own penalties (more noise, lower jumps, higher stamina drain, slower movement), and armor and helmets can carry their own movement speed and turn speed penalties. Both are item stats, separate from the inertia curve.

Balance history

Date	Patch	Change
12 December 2021	0.12.12.0.16029	Inertia added
13 April 2022	0.12.12.15.17566	Inertia for bots when they accelerate and decelerate
29 June 2022	0.12.12.30.18876	Inertia when quickly tapping A and D, adjusted lean inertia, fixes for ways to bypass or reduce it
25 April and 12 May 2024	0.14.6.0.29862	Base inertia strength reduced (by 20% in the May note), overweight limit +15%, base stamina +15%
26 December 2024	0.16.0.0.34447	Shotguns got the inertia and caliber power effect
22 October 2025	0.16.9.5.40743	PvE got the PvP settings: inertia depends less on carried weight, overweight threshold +50%, aim punch -60%
20 November 2025	1.0.0.1.41837	Fixed an incorrect calculation of inertia's effect on character movement

Nothing in the 1.1 to 1.3 notes changes inertia. The current values are therefore the post-1.0 ones, and the wiki shows no separate numbers for PvP and PvE.

Tips

• Count weight before the raid. At Strength level 0 inertia starts with your first kilogram, so a light run feels clearly different from a full kit.
• Stop in cover rather than in the open. Because stopping takes longer, a late stop leaves you exposed for a moment.
• Avoid sharp sprint turns in a fight: they cost extra speed.
• Mind drops and jumps. The notes say the slow-down after landing is stronger and longer with heavier gear.
• Train Strength by sprinting overweight, and Endurance by sprinting with a lighter load.

Related terms

• Ballistics and settings glossary: the glossary entry for inertia, arm stamina and ricochet.
• Strength stat in gaming: how Strength works across games.
• Rest Space: a hideout module for healing between raids.
• Zeroing distance: a different kind of setting that affects aim, not movement.

If armor weight is the question, the best armor guide compares options.

FAQ

What is inertia in Tarkov?

It is a movement system added on 12 December 2021 that makes accelerating, stopping, turning and landing slower the more equipment you carry. The Strength skill reduces it.

How much weight is too much?

Inertia begins at 0 kg for Strength 0 and at 10 kg at Elite Strength, and it peaks at 70 kg and 80 kg respectively, according to the December 2021 notes; later patches softened the effect without new numbers. The wiki's overweight status is a separate penalty.

Did inertia change in Tarkov 1.0?

There was a fix on 20 November 2025 for an incorrect calculation of its effect on movement. The notes since then, up to 1.3.0, list no change to the settings.

Is inertia the same in PvE?

Since 22 October 2025 PvE uses the PvP balance settings, including less dependence on carried weight.