Stop Overpaying
Bitcoin Fees
SatSaver tells you exactly when to send Bitcoin and how much to pay — in plain English. Real-time mempool data turned into clear decisions.
Live Bitcoin Fees
Real-time data · auto-refreshes every 60s
Should You Send Now?
Real-time recommendation based on current mempool
Estimates based on current mempool. Not financial advice. Full disclaimer →
Bitcoin Fee Calculator
Calculate exactly how much you'll pay. Select transaction type and confirmation speed.
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Estimated Fee
What is sat/vByte?
Satoshis per virtual byte — the unit for Bitcoin fees. Miners pick transactions offering the most sat/vByte. Higher rate = faster confirmation.
What is a vByte?
A virtual byte measures transaction weight. Simple sends are ~140 vB. Complex transactions with many inputs/outputs are 500+ vB. SegWit and Taproot reduce size.
When do fees spike?
When demand exceeds Bitcoin's ~1 block per 10 minutes. Events like halving, Ordinal mints, or market volatility cause congestion. Fees drop during off-peak hours.
Ready to Send?
Now that you know when to send and what fee to pay — use these trusted tools to do it. SatSaver-recommended options for wallets and exchanges.
Ledger Hardware Wallet
PartnerYour keys, your Bitcoin
Store Bitcoin offline in cold storage. Full control over fee settings — set custom sat/vByte rates before every transaction. Trusted by 6M+ users.
Get LedgerBitcoin Wallet App
PartnerFee control built in
A non-custodial wallet that respects your fee preferences. Set exact sat/vByte rates and send when conditions are right.
Get the walletBuy / Sell Bitcoin
PartnerLow spread, fast withdrawal
Trade Bitcoin at competitive rates with fast withdrawals so you can move funds when fees are low.
Compare ratesHardware Wallet (Alt)
Cold storage alternative
Another trusted hardware wallet option for storing Bitcoin offline with full fee control. Replace this with your second hardware affiliate.
View hardware walletsBitcoin Exchange
Buy Bitcoin at low fees
Buy or sell Bitcoin at competitive rates with fast withdrawals — so you can move funds when fees are low.
Check ratesⓘ Partner links above are affiliate links. We earn a small commission if you sign up — at no extra cost to you. Commissions fund SatSaver's free tools. Full affiliate disclosure
How SatSaver Works
We translate raw Bitcoin mempool data into a simple decision. No technical knowledge required.
We check the mempool
SatSaver fetches live fee data from the Bitcoin mempool — the waiting room for unconfirmed transactions. Updated every 60 seconds.
We run the numbers
Our decision engine compares current fees against historical patterns to determine if now is a good, bad, or neutral time to send.
You get a clear answer
No raw data, no guesswork. You see: send now, wait, or it's borderline — with a plain English explanation and potential savings estimate.
You save money
By timing your transaction, you pay lower fees. Sats stay in your wallet, not miners' pockets.
When Is the Cheapest Time to Send Bitcoin?
Bitcoin transaction fees fluctuate based on network demand. When many people are trying to send Bitcoin at the same time, miners charge more. When the network is quiet, fees drop significantly — sometimes by 80–90%.
Best times to send: Weekends (especially Sunday mornings UTC) and overnight hours in the US tend to have lower fees. Major market events, halving periods, and mempool spikes can cause fees to surge unexpectedly.
What to avoid: Sending during high market volatility, major news events, or when mempool size is unusually high. SatSaver watches these signals for you.
Economy vs. fastest:If your transaction is not time-sensitive, using the "economy" fee rate can save 50–90% versus the "next block" rate. Transactions usually still confirm within a few hours.
Never Overpay Again
Set a target fee. Check instantly if it's been crossed — or register your email to get notified automatically when fees drop.
Automate Your Savings
Free already saves you money. Pro automates it — alerts, trends, and batch tools so you never overpay again.
Fee Drop Alerts
Email alert when fees drop below your target sat/vByte threshold.
Savings Tracker
Running total of sats and USD saved by timing your transactions.
7-Day / 30-Day Trends
Historical fee charts to find the best windows by hour and day.
Best Send Window
Forecast of when fees will next dip based on historical patterns.
Batch Optimizer
Planning multiple transactions? Batch to cut total fees.
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Completely ad-free experience across all devices.
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Frequently Asked Questions
Everything you need to know about Bitcoin fees and how SatSaver helps.
More questions? Contact us →