Cold Plunge & Ice Bath Timer
Free cold plunge and ice bath timer with a safe-duration suggestion based on water temp and experience. Log sessions and track weekly cold-exposure minutes.
Cold Plunge & Ice Bath Timer
Water Temperature
Experience Level
Target Duration
Weekly Cold Exposure
Session Notes
Notes save with the session log when the timer finishes or you tap Log Session.
Session Log
| Date | Temp | Time | |
|---|---|---|---|
| No sessions logged yet. Run the timer to add your first. | |||
Cold plunges work better as part of a wider routine. Reset75 tracks daily wellness habits, hydration, and progress photos so cold exposure becomes one piece of a 75-day reset instead of a one-off.
Try Reset75 FreeHow to use the cold plunge timer
Set your water temperature, pick your experience level, and the suggested safe range updates live. Adjust the target minutes and seconds to match your plan, then hit Start. The countdown runs in your browser with a soft chime at the end. Add an optional note (water felt brutal, breathing stayed even, that kind of thing) and the session saves to your local log when the timer hits zero.
Safe ice bath duration by temperature
Time in the water should track with how cold the water is and how adapted you are. The suggestions in this timer follow the bands cited by Huberman Lab, IceBath.org, and BlueCube Baths:
- 60 to 70°F (cool): beginners 2 to 5 min, intermediate 5 to 10 min, advanced 10 to 15 min.
- 55 to 59°F (cold): beginners 1 to 3 min, intermediate 3 to 6 min, advanced 6 to 10 min.
- 50 to 54°F (very cold): beginners 1 to 2 min, intermediate 2 to 4 min, advanced 4 to 8 min.
- 40 to 49°F (extreme): beginners 30 sec to 1 min with caution, intermediate 1 to 2 min, advanced 2 to 5 min.
- Below 40°F: ice swimmer territory, supervised only.
Below 50°F the suggestion card flips to a Caution badge. Below 40°F it flips to Expert-only with a warning to talk to a doctor first.
Building a 75-day cold exposure habit
Three or four plunges a week, 2 to 3 minutes each, gets you near the Huberman 11-minute weekly target. Pair the cold habit with the rest of your daily routine on the 75 Tough tracker or the gentler 75 Soft tracker and you have a structure that actually sticks. The full Reset75 app on iOS and Android ties cold exposure, hydration, and progress photos together if you want one place for the whole challenge.
When to skip a cold plunge
Skip the bath when you are sick, sleep-deprived, or already shivering from a cold environment. Cardiovascular conditions, uncontrolled high blood pressure, Raynaud\'s, and pregnancy are all reasons to talk to a doctor first. Avoid plunging within 4 to 6 hours of heavy strength training if hypertrophy is the goal, since cold right after lifting can blunt muscle adaptation.
Frequently Asked Questions
Common questions about cold plunge & ice bath timer
How long should beginners stay in an ice bath?
For most people starting out, 1 to 3 minutes at 50 to 59°F (10 to 15°C) is plenty. A lot of coaches will tell you to start at 30 to 90 seconds and add time as your tolerance builds.
What is a safe water temperature for a cold plunge?
The usual safe and effective range is 50 to 59°F (10 to 15°C). Anything below 39°F (4°C) is for trained ice swimmers with medical clearance and a buddy on deck.
How many minutes of cold exposure per week is enough?
Andrew Huberman's lab points to about 11 minutes per week, split across 2 to 4 sessions of 2 to 3 minutes. The weekly total in this timer is built around that number.
Can I cold plunge every day?
Daily plunges in your first week are not a great idea. Aim for 3 to 5 sessions with rest days so your body can adapt. If you want to fold the habit into a longer streak, the 75 Tough tracker pairs well with this.
Does the timer work offline?
Yes. Once the page is loaded, the countdown, session log, and weekly minutes total all run locally in your browser. No account, no signup, no upload.
Where is my session data stored?
Everything is saved in your browser's localStorage on this device. Nothing is sent anywhere. If you clear your site data or switch browsers, the log resets.
Should I cold plunge before or after a workout?
Most research suggests waiting 4 to 6 hours after strength training so you don't blunt muscle adaptation. Pre-workout plunges, or non-strength days, are fine for almost everyone.
What should I do if I feel lightheaded in the bath?
Get out, dry off, and warm up slowly with light movement and dry layers. Never plunge alone if you are new to cold exposure, and stop right away if your breathing feels out of control.