Bitcoin UTXO Consolidation Calculator
Paste your wallet address and see, in one number, what it would cost right now to combine your small UTXOs into one — using live network fees. No sign-up, nothing stored.
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How it works
One input, one number.
Paste your address
Your public wallet address is looked up directly against a public blockchain API — nothing goes through Cointikka's servers.
We count your UTXOs
The tool pulls your current unspent outputs and detects your address type automatically.
Get one clear number
See what combining them into one would cost right now, at the current live network fee.
Why use this calculator
Live network fees
Uses the current recommended sat/vB rate, not a stale or guessed number.
One clear answer
Leads with a single plain-language number — no cluttered dashboard to interpret.
Address stays private
Your address is sent to a public blockchain API in your own browser — never logged by Cointikka.
Manual mode available
Don't want to paste an address? Enter your UTXO count by hand instead.
Optional comparison
See the same cost at higher fee levels, only if you want to look.
Free, no sign-up
No account, no limits, no watermark on the numbers.
Understanding UTXO consolidation
Why long-term Bitcoin holders end up needing this, and when it's worth doing.
What's a UTXO, and why do they pile up?
Every time you receive Bitcoin — a DCA buy, a payout, a transfer from an exchange — it arrives in your wallet as its own separate UTXO (Unspent Transaction Output). If you've been buying small amounts regularly over months or years, especially through a wallet that generates a new address each time, you can end up holding dozens or even hundreds of small UTXOs without realizing it.
Why that becomes expensive
A Bitcoin transaction fee is based on its size in bytes, not the amount being sent. Spending from many small UTXOs at once means the transaction has to reference each one as a separate input, and each input adds real, billable size. A wallet with 50 small UTXOs can cost far more to spend from than a wallet holding the same total value in one or two UTXOs — sometimes hundreds of dollars more when network fees spike.
Why consolidate during low-fee periods
Combining your UTXOs into one, while fees are low, means you pay a small cost now instead of a much larger one later when you actually need to spend and fees happen to be high. Network fees fluctuate significantly — from under 1 sat/vB during quiet periods to well over 100 sat/vB during congestion — so timing a consolidation for a calm window is what makes it worthwhile.
The trade-off to keep in mind
Consolidating links your UTXOs together on-chain, which can reduce privacy by making it easier to see that they belong to the same wallet. For most holders the fee savings outweigh this, but it's worth being aware of if privacy between your transactions matters to you.