---
url: /styles/motion/overview/specs.md
description: The motion physics system makes a UI expressive and easy to use
---
# Motion physics system
The motion physics system makes a UI expressive and easy to use
[How it works](how-it-works.md) · **Specs**
## Cross-platform experiences
The motion physics system is available on Jetpack Compose and Android Views (MDC-Android), and can be easily adapted to other platforms.
| Platform | Status | How to apply |
| --------------------------- | ----------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Jetpack Compose | Available | Use built-in components and spring tokens. |
| Android Views (MDC-Android) | Available. Not added to components. | Use built-in spring tokens. |
| Web | Compatible | Use springs when possible, otherwise use curves that mimic the springs for animations without interruptions or gestures. [View web conversion table](#e3e4f10b-6314-47b7-9051-988066081fa0) |
## Tokens and specs
The **spring composite **tokens are used in the motion physics system. These composites combine two **spring** tokens (damping and stiffness) into a single token for ease of use. The **easing**, **duration**, and **path** tokens are used by the legacy system, so can be ignored.
::: token-table token-type-unspecified-20543ce18892f7d9-1c9c02a3
**Motion tokens** · 1 token set · 45 tokens · [live token table](https://m3.material.io/styles/motion/overview/specs) · DSDB `TOKEN_TYPE_UNSPECIFIED.20543ce18892f7d9`
* Default context: Platform: Android · Motion scheme: Standard
* Not configurable here (group default used): Theme: Light · Audience: 1P Baseline · Font: Static · Contrast: Default · iOS dark theme elevation: None · iOS weight setting: Default · Language height: Small
* Other contexts: Platform: Web, Compose · Motion scheme: Expressive. "Other contexts" lists values that differ from the default when only that one context changes.
* Reference chain: aliases from the token to its source value (`token → alias → … → value`). "—" means the token holds a literal value.
**Motion** · `md.sys.motion` · 45 tokens
For all motion. Includes spring tokens (physics system), and legacy easing and duration tokens.
| Group | Token | Type | Reference chain | Resolved value | Other contexts |
| --- | --- | --- | --- | --- | --- |
| Easing | `md.sys.motion.easing.emphasized` | Cubic bezier | — | `M 0,0 C 0.05, 0, 0.133333, 0.06, 0.166666, 0.4 C 0.208333, 0.82, 0.25, 1, 1, 1` | Web: `cubic-bezier(0.2, 0, 0, 1)` via `md.sys.motion.easing.standard`
Compose: `cubic-bezier(0.2, 0, 0, 1)` |
| Easing | `md.sys.motion.easing.emphasized.accelerate` | Cubic bezier | — | `cubic-bezier(0.3, 0, 0.8, 0.15)` | — |
| Easing | `md.sys.motion.easing.emphasized.decelerate` | Cubic bezier | — | `cubic-bezier(0.05, 0.7, 0.1, 1)` | — |
| Easing | `md.sys.motion.easing.standard` | Cubic bezier | — | `cubic-bezier(0.2, 0, 0, 1)` | — |
| Easing | `md.sys.motion.easing.standard.accelerate` | Cubic bezier | — | `cubic-bezier(0.3, 0, 1, 1)` | — |
| Easing | `md.sys.motion.easing.standard.decelerate` | Cubic bezier | — | `cubic-bezier(0, 0, 0, 1)` | — |
| Easing | `md.sys.motion.easing.legacy` | Cubic bezier | — | `cubic-bezier(0.4, 0, 0.2, 1)` | — |
| Easing | `md.sys.motion.easing.legacy.accelerate` | Cubic bezier | — | `cubic-bezier(0.4, 0, 1, 1)` | — |
| Easing | `md.sys.motion.easing.legacy.decelerate` | Cubic bezier | — | `cubic-bezier(0, 0, 0.2, 1)` | — |
| Easing | `md.sys.motion.easing.linear` | Cubic bezier | — | `cubic-bezier(0, 0, 1, 1)` | — |
| Duration | `md.sys.motion.duration.short1` | Duration | — | `50ms` | — |
| Duration | `md.sys.motion.duration.short2` | Duration | — | `100ms` | — |
| Duration | `md.sys.motion.duration.short3` | Duration | — | `150ms` | — |
| Duration | `md.sys.motion.duration.short4` | Duration | — | `200ms` | — |
| Duration | `md.sys.motion.duration.medium1` | Duration | — | `250ms` | — |
| Duration | `md.sys.motion.duration.medium2` | Duration | — | `300ms` | — |
| Duration | `md.sys.motion.duration.medium3` | Duration | — | `350ms` | — |
| Duration | `md.sys.motion.duration.medium4` | Duration | — | `400ms` | — |
| Duration | `md.sys.motion.duration.long1` | Duration | — | `450ms` | — |
| Duration | `md.sys.motion.duration.long2` | Duration | — | `500ms` | — |
| Duration | `md.sys.motion.duration.long3` | Duration | — | `550ms` | — |
| Duration | `md.sys.motion.duration.long4` | Duration | — | `600ms` | — |
| Duration | `md.sys.motion.duration.extra-long1` | Duration | — | `700ms` | — |
| Duration | `md.sys.motion.duration.extra-long2` | Duration | — | `800ms` | — |
| Duration | `md.sys.motion.duration.extra-long3` | Duration | — | `900ms` | — |
| Duration | `md.sys.motion.duration.extra-long4` | Duration | — | `1000ms` | — |
| Style | `md.sys.motion.path` | Motion path | — | `standard path Linear` | — |
| Spring | `md.sys.motion.spring.fast.spatial.damping` | Numeric | — | `0.9` | Expressive: `0.6` |
| Spring | `md.sys.motion.spring.fast.spatial.stiffness` | Numeric | — | `1400` | Expressive: `800` |
| Spring | `md.sys.motion.spring.fast.effects.damping` | Numeric | — | `1` | — |
| Spring | `md.sys.motion.spring.fast.effects.stiffness` | Numeric | — | `3800` | — |
| Spring | `md.sys.motion.spring.default.spatial.damping` | Numeric | — | `0.9` | Expressive: `0.8` |
| Spring | `md.sys.motion.spring.default.spatial.stiffness` | Numeric | — | `700` | Expressive: `380` |
| Spring | `md.sys.motion.spring.default.effects.damping` | Numeric | — | `1` | — |
| Spring | `md.sys.motion.spring.default.effects.stiffness` | Numeric | — | `1600` | — |
| Spring | `md.sys.motion.spring.slow.spatial.damping` | Numeric | — | `0.9` | Expressive: `0.8` |
| Spring | `md.sys.motion.spring.slow.spatial.stiffness` | Numeric | — | `300` | Expressive: `200` |
| Spring | `md.sys.motion.spring.slow.effects.damping` | Numeric | — | `1` | — |
| Spring | `md.sys.motion.spring.slow.effects.stiffness` | Numeric | — | `800` | — |
| Other | `md.sys.motion.spring.fast.spatial` | Custom composite | composite
+2 variation axes | `damping 0.9 · stiffness 1400` | Expressive: `damping 0.6 · stiffness 800` |
| Other | `md.sys.motion.spring.fast.effects` | Custom composite | composite
+2 variation axes | `damping 1 · stiffness 3800` | — |
| Other | `md.sys.motion.spring.default.spatial` | Custom composite | composite
+2 variation axes | `damping 0.9 · stiffness 700` | Expressive: `damping 0.8 · stiffness 380` |
| Other | `md.sys.motion.spring.default.effects` | Custom composite | composite
+2 variation axes | `damping 1 · stiffness 1600` | — |
| Other | `md.sys.motion.spring.slow.spatial` | Custom composite | composite
+2 variation axes | `damping 0.9 · stiffness 300` | Expressive: `damping 0.8 · stiffness 200` |
| Other | `md.sys.motion.spring.slow.effects` | Custom composite | composite
+2 variation axes | `damping 1 · stiffness 800` | — |
:::
## Web: Convert springs to curves
| Spring | Curve |
| -------------------------- | ---------------------------------------- |
| Expressive fast spatial | 0.42, 1.67, 0.21, 0.90. Duration = 350ms |
| Expressive default spatial | 0.38, 1.21, 0.22, 1.00. Duration = 500ms |
| Expressive slow spatial | 0.39, 1.29, 0.35, 0.98. Duration = 650ms |
| Expressive fast effects | 0.31, 0.94, 0.34, 1.00. Duration = 150ms |
| Expressive default effects | 0.34, 0.80, 0.34, 1.00. Duration = 200ms |
| Expressive slow effects | 0.34, 0.88, 0.34, 1.00. Duration = 300ms |
| Standard fast spatial | 0.27, 1.06, 0.18, 1.00. Duration = 350ms |
| Standard default spatial | 0.27, 1.06, 0.18, 1.00. Duration = 500ms |
| Standard slow spatial | 0.27, 1.06, 0.18, 1.00. Duration = 750ms |
| Standard fast effects | 0.31, 0.94, 0.34, 1.00. Duration = 150ms |
| Standard default effects | 0.34, 0.80, 0.34, 1.00. Duration = 200ms |
| Standard slow effects | 0.34, 0.88, 0.34, 1.00. Duration = 300ms |
## Easing and duration
The original easing and duration tokens are still available to use as a fallback, and are currently used for animating transitions. [View easing and duration system](../easing-and-duration/applying-easing-and-duration.md)