Free browser tool

Habit streak & consistency calculator

Mark the days you completed your habit and the days you planned to rest. See your consistency and momentum without letting one gap erase everything else.

No signup · No tracking · Your calendar stays in this browser

Your recent days

Select a date to cycle it from Open to Done to Planned rest. Rest days do not lower your consistency or break a run.

0% Consistency
0 Current run
0 Longest run
0 Days done

Mark your first completed day whenever you are ready.

Progress is stored only in local browser storage. Nothing is uploaded.

How this habit consistency calculator works

Consistency is completed days divided by eligible days. Planned rest is removed from the denominator. If you track 30 days, complete 18, and mark 6 as planned rest, your consistency is 18 out of 24 eligible days: 75%.

Current run counts consecutive completed days backward from today. Planned rest lets the run wait; an open day ends it. Longest run is the best sequence inside the selected window using the same rule.

Why call it consistency as well as a streak?

A streak answers one narrow question: “How many consecutive times?” Consistency keeps the rest of the record visible. A 26-out-of-30 month is still a strong month even if the four open days were not adjacent.

How to track a habit without punishing rest

  1. Decide what “done” means. Make the finish line observable: ten minutes walked, one page read, or one glass of water finished.
  2. Mark planned rest separately. Use it for days the habit was never scheduled, not as a way to rewrite an unplanned miss.
  3. Review both numbers. A run shows momentum; consistency shows the whole window.
  4. Adjust the system when it keeps failing. Shrink the action, change the time, or reduce the weekly frequency.

Streaks versus completion rate

Measure Useful for Blind spot
Current run Immediate momentum Can hide months of earlier work after one gap
Longest run A personal best to celebrate May describe the past more than the present
Consistency The overall pattern across a period Does not show whether completions clustered together
Planned rest Separating schedule from avoidance Only stays meaningful when marked honestly

Common questions

Do planned rest days break a habit streak?

Not in this calculator. Planned rest pauses the run and is excluded from consistency. An open day breaks the run and remains part of the consistency calculation.

What is a good habit consistency percentage?

There is no universal target. The useful comparison is with the schedule and purpose of your own habit. If a habit matters three days per week, three honest completions can be 100% consistency for that plan.

Does my data leave the browser?

No. The tool uses local browser storage so the marks can still be here when you return on the same device. It has no account, analytics request, or server-side save.

How do I build this into a more motivating system?

Start by reading the guide to gamified habit tracking without streak shame. It explains how to pair a clear action with XP, planned rest, and optional co-op accountability.