Most states impose a mandatory waiting period — a minimum time before a divorce can be finalized — ranging from none at all to a full year of required separation. Your real timeline is that waiting period plus how long the paperwork and any disputes take. Pick your state for its minimum wait and a realistic estimate.
The waiting period is a legal floor, not the whole story. An uncontested divorce (both spouses agree) usually finalizes shortly after the waiting period ends — often a few weeks to a couple of months of paperwork. A contested divorce (disagreements over money, property, or children) can take many months to well over a year regardless of the minimum, because it moves at the pace of negotiation, discovery, and the court's calendar.
Note that states start the clock differently — some from the date you file, others from the date your spouse is served, and a handful require a period of separation before you can even file. See divorce cost and filing fees for the money side.
