Daily range over the last three weeks
Fetching from the public market feed…
How to read the number, and where it comes from
The problem it solves
Everyone has heard that crypto is volatile. Hearing it and having a feel for it are different, and plenty of people only acquire the feel when a third of their money has gone. This page turns the abstract sentence into a specific number.
Where the data comes from
When the page opens it makes one request to Binance's public market data endpoint — no account required, no personal information involved — and takes roughly the last three weeks of daily candles. Nothing here is stored in advance: if the request fails, nothing is displayed and the page says so. You can verify that by disconnecting and reloading.
How daily range is calculated
Each day's high minus its low, divided by that day's open. It describes how much the price moved around within the day, which is not the same as the day's close-to-close change: a day can fall 8% and recover, ending flat, while the range was 8%. For judging whether you could hold a position, range is more informative than change.
How to use the number
Multiply it by the amount you are considering. If the average daily range is 4%, then a ten-thousand position moves several hundred on an ordinary day. If that number is comfortable, carry on; if it is not, reduce the amount. That is the whole method — no model required.
What it cannot do
It does not forecast, it does not advise, and it says nothing about which asset is better. Historical range only describes the last three weeks. Genuinely extreme conditions usually exceed the recent range, so treat this as a floor rather than a ceiling.
What to read next
- How much to put into the first trade — turning this number into an amount.
- What crypto people are actually talking about — where price comes from.
- Readiness check — what else might be missing.