> For the complete documentation index, see [llms.txt](https://docs.stakingrewards.com/staking-data/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stakingrewards.com/staking-data/methodologies/polkadot-pattern-substrate-srb/vara-srb.md).

# Vara SRB

Learn how Vara Network staking rewards are calculated. VARASRB uses the Substrate era-based reward model with on-chain ROI data and staked VARA tokens.

VARASRB is a benchmark representing the annualized staking rate for the VARA token.

VARASRB is calculated and published by Staking Rewards via the [Vara Profile](https://www.stakingrewards.com/asset/vara-network) and [Data API](https://www.stakingrewards.com/data-api).

> **TL;DR:** Vara Network staking rewards use the Substrate era-based reward model. The benchmark rate is derived from on-chain ROI data. Validator-level rates are adjusted by commission in the Nominated Proof of Stake system.

### VARA Staking Rewards Rate: VARASRB

$$
VARASRB = roi
$$

<table><thead><tr><th width="145">Formula Key</th><th width="169">Metric Name</th><th>Description</th></tr></thead><tbody><tr><td>roi</td><td>Return on Investment</td><td>The annualized staking reward rate published by the Vara network stats API, reflecting the current expected return for stakers.</td></tr></tbody></table>

* VARASRB is non-compounded, excluding returns from reinvestment of rewards.
* The reward rate is sourced from the Vara network's own stats endpoint, which computes the ROI based on current network parameters including era rewards, staking ratio, and validator performance.
* Both claimed and unclaimed rewards are included.

#### Slashing

* VARASRB does not factor in the possibility of slashing occurrences.
* Vara implements Substrate's standard slashing mechanism. Validators can be slashed for equivocation or prolonged unresponsiveness.

***

### VARA Validator Staking Rewards Rate: VARASRB(v)

Staking Rewards calculates the VARASRB for each validator based on their individual era points (performance) and commission rate.

$$
VARASRB(v) = (vep / tep \* tvr) / t\_m \* t\_y / vst
$$

<table><thead><tr><th width="149">Formula key</th><th width="216">Metric Name</th><th>Description</th></tr></thead><tbody><tr><td><span class="math">vep</span></td><td>Validator Era Points</td><td>Validator era points accumulated in the observation period.</td></tr><tr><td>tep</td><td>Total Era Points</td><td>Total era points for all validators in the observation period.</td></tr><tr><td>tvr</td><td>Total Validator Rewards</td><td>All rewards distributed to all validators in the observation period.</td></tr><tr><td>vst</td><td>Validator Staked Tokens</td><td>Validator staked tokens, self-staked and nominated.</td></tr><tr><td><span class="math">t_y</span></td><td>Year Constant</td><td>365d</td></tr><tr><td><span class="math">t_m</span></td><td>Month Constant</td><td>30d</td></tr></tbody></table>

***

#### Observation Period:

1. The VARASRB is determined based on the latest completed era at the evaluation point.
2. This data is then annualized for a comprehensive year-long projection.

#### Calculation

The calculation happens every 6 hours and is immediately published via [Data API](https://www.stakingrewards.com/data-api).

#### Limitations

1. VARASRB employs a 365-day convention for annualizing era reward data. This convention remains consistent and does not accommodate adjustments for leap years.

***

### VARA Real Reward Rate: VARASRB^R

The real reward rate calculates the reward rate adjusted for inflation in the network.

$$
VARASRB^R = 1+VARASRB/(1+ir)-1
$$

<table><thead><tr><th width="147">Formula key</th><th width="148">Metric name</th><th>Description</th></tr></thead><tbody><tr><td>ir</td><td>Inflation Rate</td><td>Derived from on-chain era rewards: <code>eraValidatorReward * 2190 / totalSupply</code>.</td></tr></tbody></table>

**Inflation Rate Behavior**

* Vara uses 4-hour eras (2190 per year). The inflation rate is derived from actual on-chain era rewards, reflecting the real-time token emission of the network. Vara's inflation model distributes rewards to validators and nominators through the standard Substrate NPoS staking mechanism.

***

### Other Vara metrics calculated by Staking Rewards:

<table><thead><tr><th width="212.99999999999994">Metric</th><th>Description</th></tr></thead><tbody><tr><td>Delegated Tokens</td><td>The number of VARA tokens nominated to validators.</td></tr><tr><td>Self Staked Tokens</td><td>The number of VARA tokens staked by validators directly.</td></tr><tr><td>Staking Wallets</td><td>Total number of nominators on-chain.</td></tr></tbody></table>

***

Data Sources:

* Vara Substrate RPC (on-chain staking pallet queries via py-substrate-interface)
* Vara Stats API (reward rate)
* CoinGecko for price and circulating supply

***

#### References:

* [Vara Network Documentation](https://wiki.vara.network/)
* [Vara Staking Guide](https://wiki.vara.network/docs/staking/)

***

:books: [Learn more about VARA Staking](https://www.stakingrewards.com/asset/vara-network)

:bar\_chart: [Calculate your VARA Staking Rewards](https://www.stakingrewards.com/calculator?asset=vara-network)

:gear: [Access historic VARA Staking Data via API](https://www.stakingrewards.com/data-api)

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Last updated on 03/16/2026
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