On-chain fees — you might pay less — model first, then sign.

Many teams keep wallet defaults for payouts. This page helps you stress-test before internal meetings: monthly tx count, gas limit, gwei assumptions, and rollup cost discounts. Cross-check outputs with your browser, wallet preview, and explorers before acting.

Open fee model

1. Fee model

Estimate: monthly ETH ≈ txs × (GasLimit × Gwei × 10⁻⁹). Adjust sliders; add ETH/USD for a USD view. Excludes priority fees, blobs, MEV, failed retries, and full bridge economics.

Monthly on-chain transactions 12

Gas price (Gwei) 35

Gas limit per tx 21000

ETH price in USD (optional) 0

L2 / sidechain cost vs mainnet (%) 20

0ETH / month (est.)

0ETH / year (est.)

—USD / month

0ETH / month @ % above

0ETH / month savings (model)

Static assumptions only; congestion, upgrades, and routing can diverge. Treat the signature screen as final.

2. Presets & local scenario library

Presets match three common roles. Named saves go to browser localStorage; clearing site data removes them. Avoid sensitive assumptions on shared devices.

Quick presets

3. Network path comparison

For risk memos. Lower cost does not mean better compliance or finality.

Higher base fees in congestion; clearer finality rules for some assets. Suited to low-frequency, large transfers when legal has signed off on the chain type.

Often cheaper per transfer; assess sequencer uptime, withdrawal delays, and contract allowlists. Cold-wallet first use of a new chain should follow a written checklist.

Costs include gas, liquidity, and messaging. Model “bridge + destination gas” together; first route requires dual review of contracts and allowlists.

4. Pre-sign checklist

Action items for treasury meetings. Tap rows to track progress.

5. Knowledge check

Three questions; short feedback after submit. Archive with model output for training records.

White-label deployment, custom training packs, or OA integration — reach us via the business channel.

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