Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Action
Sell asset A
Trade size for A (+buy / −sell)
-$2,000
Current weight of A
70.0%
Drift from target
10.0%
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter asset a value ($).
- 2Enter asset b value ($).
- 3Enter target weight for a (%).
- 4Enter rebalance band (±%).
- 5Read your action on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
Enter current values and target weights for a two-asset split to get exact trade sizes and post-trade drift.
Worked example
Using the values the calculator loads with:
Inputs
- Asset A value: 14000 $
- Asset B value: 6000 $
- Target weight for A: 60 %
- Rebalance band: 5 ±%
Results
- Action: Sell asset A
- Trade size for A (+buy / −sell): -$2,000
- Current weight of A: 70.0%
- Drift from target: 10.0%
What each field means
Inputs
- Asset A value ($)
- The asset a value used in the calculation, measured in $. Starts at 14000 $ so you have a working example on load.
- Asset B value ($)
- The asset b value used in the calculation, measured in $. Starts at 6000 $ so you have a working example on load.
- Target weight for A (%)
- The target weight for a used in the calculation, measured in %. Starts at 60 % so you have a working example on load. Accepted range: 0–100 %.
- Rebalance band (±%)
- The rebalance band used in the calculation, measured in ±%. Starts at 5 ±% so you have a working example on load.
Results
- Action
- Returned as a plain value and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Trade size for A (+buy / −sell)
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Current weight of A
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Drift from target
- Returned as a percentage. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the crypto portfolio rebalance calculator work?
Enter current values and target weights for a two-asset split to get exact trade sizes and post-trade drift.
What do I need to enter?
4 values: asset a value, asset b value, target weight for a, and rebalance band. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the action result mean?
It is returned as a plain value and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
Who is this tool for?
It's built for anyone comparing money scenarios before committing — budgeting a payment, sanity-checking a quote, or seeing what a change in rate or term actually costs.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Crypto Portfolio Rebalance Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/crypto-portfolio-rebalance
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/crypto-portfolio-rebalance" target="_blank" rel="noopener">Crypto Portfolio Rebalance Calculator — RevenueLab</a> (2026).</p>
Source: [Crypto Portfolio Rebalance Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/crypto-portfolio-rebalance) (2026).