Arbitrum Average Buy Price Calculator
Work out your weighted average Arbitrum (ARB) entry price across multiple buys — and see exactly where your break-even sits.
Result
Enter values to see the result.
Using the Arbitrum Average Buy Price Calculator
If you bought ARB more than once, your break-even is not the midpoint of the two prices — it is the weighted average, where the larger buy pulls the average toward its own price. This calculator does that weighting for you across two entries, which is the case that trips people up most often when they average down.
The weighted average is also your cost basis for tax in most jurisdictions, though the accepted method differs by country — some require FIFO, others mandate an average-cost approach. Our region-by-region crypto tax guides cover which method applies where before you rely on this figure for a return.
ARB has been under near-constant unlock pressure since launch, and trades on rollup competition and on Ethereum's own fee narrative. That is the practical argument for knowing your true average: it tells you the exact ARB price at which the position stops being a loss, which is a much more useful anchor during a drawdown than the price of your first buy.
Where a ARB break-even actually lands
- Last price
- $0.1413
- 52-week range
- $0.0728 – $0.5414
- Position in range
- 15%
- Equal-$ break-even
- $0.1283
At $0.1413, ARB sits about 15% of the way up its 12-month range. That puts you near the bottom of that range — averaging down here pulls your break-even toward the current price fastest.
Split $1,000 evenly between a buy at this year's low and one at its high and your weighted average is $0.1283 — below the $0.3071 midpoint, because the cheaper buy bought more coins. That weighted number, not the midpoint of the two prices, is your true break-even and, in most countries, your cost basis for tax.
Figures are derived from ARB's own daily closes over the window shown and are bounded by it — not all-time values. Prices move; treat them as context, not a forecast.
Arbitrum at a glance
- Launched
- Chain August 2021; ARB token March 2023
- Type
- Optimistic rollup settling to Ethereum
- Max supply
- 10,000,000,000 ARB
- Gas token
- ETH — not ARB
- Withdrawals
- ~7-day challenge window for trustless exits to Ethereum
- Native staking
- None — ARB is used for governance
Frequently asked questions
- How do I calculate my average ARB price?
- Add up what you spent across all buys, then divide by the total number of ARB you received. Weighting by size is essential — buying 1 ARB high and 9 ARB low gives an average far closer to the low price.
- Does averaging down lower my break-even?
- Yes, arithmetically — buying more ARB below your entry pulls the weighted average down. It also increases your position size, so the same percentage move against you now costs more in dollars. Check the new position against your risk limit before adding.
- Do exchange fees change my cost basis?
- In most tax systems acquisition fees are added to cost basis, which raises your true break-even slightly above the raw weighted average. Arbitrum transactions typically cost cents, since the rollup amortises Ethereum data costs across a whole batch; that cost still moves with Ethereum's own fee market.
- How do I calculate average entry price?
- Average entry = total cost ÷ total coins. Multiply each buy's price by its amount, sum them, then divide by total coins held.
- What is averaging down?
- Buying more of an asset at a lower price to reduce your average entry, so a smaller recovery is needed to break even.
More ARB calculators
Free Arbitrum (ARB) profit calculator. Enter your buy and sell price to see ARB profit, loss, ROI and fees — prefilled with the live ARB price.
Free Arbitrum (ARB) dollar-cost-averaging calculator. Model recurring ARB buys to see coins accumulated, average entry and portfolio value at today's live price.
Find the exact Arbitrum (ARB) price that liquidates your leveraged position. Prefilled with the live ARB price — set your leverage and direction.
Calculate Arbitrum (ARB) market cap from the live ARB price and circulating supply — plus FDV, and the price ARB would need to reach any target valuation.
Average Entry Price Calculator for other coins
📖 Learn more
What dollar-cost averaging is, why it works in volatile crypto markets, its pros and cons, and how to model your own DCA plan.
HMRC has no separate crypto tax — it uses Capital Gains Tax, an income tax charge on rewards, and share-pooling rules that decide which coins you actually sold. Here is how all three work.
Germany treats crypto unusually kindly: hold for more than a year and the gain is completely tax-free. Here is how §23 EStG works, the €1,000 exemption limit, staking rules and the new DAC8 reporting.
Prefer the generic version without ARB presets? Open the Average Entry Price Calculator.
Sign up & trade to earn USDC rewards
Trade ARB on Binance →Partner links — we may earn a commission at no extra cost to you. See our affiliate disclosure.
For educational purposes only. Rates, fees and protocol parameters change — verify current figures with your exchange or validator before acting. Not financial advice.