Will I hit my Claude limit before it resets?

Your limit fills over a window: five hours for the session, a week for the weekly limit. From the percentage used and the time left, the calculator knows how much of the window has gone by and how fast you have been going. At the same pace, it gives the time you would reach 100 %, or, if that comes after the reset, the level you would reach at the reset.

Example: 45 % of the session used with 3 hours left means 45 points in 2 hours, 22.5 points an hour. The remaining 55 points go in about 2 h 27 min: 100 % some 33 minutes before the reset. It is the same projection as the pace marker of the UsageMeter extension.

The average since the window opened smooths everything out, a quiet morning and a busy afternoon alike. Add an earlier reading of the same window and the calculator uses the pace between your two readings instead, like the extension’s forecast, which follows your last 45 minutes (12 hours for the week).

In Claude, Settings › Usage shows the percentage of your current session and of your week, the time remaining in the session, and when your weekly limit resets. Claude Code shows the same limits in /usage, and its status line can read them too.

The session window opens with your first message once the previous one is over, and closes about five hours later; the weekly limit resets at a fixed time assigned to your account.

It projects a pace; it doesn’t see your account. Your pace changes with what you do: a long conversation, a big file or Claude Code working in the background speed it up. Anthropic doesn’t publish its limits in tokens, and can change them. The extension reads the limits Claude shows you and redoes this projection as you go.