Dog Heat Cycle Tracker
This free tool helps breeders estimate when a dog may come into heat next using realistic planning ranges — not exact predictions.
Heat cycles vary widely between dogs based on breed, age, health, and environment. Even within the same bloodline, timing can shift from cycle to cycle.
Because of this natural variation, experienced breeders plan using date ranges rather than exact calendar dates.
Dog Heat Cycle Tracker
Estimate when a dog may come into heat next using realistic planning ranges. This tool is designed for preparation — not exact prediction.
This tool is for planning and record-keeping purposes only and does not replace veterinary advice.
How dog heat cycles work
Most female dogs come into heat approximately every 6 to 8 months. However, this is only an average.
Younger dogs, senior dogs, and certain breeds may fall outside the typical range. Stress, illness, and environmental changes can also influence timing.
Frequently Asked Questions
How often do dogs go into heat?
Most dogs cycle every 6 to 8 months, but individual timing can vary significantly.
Can a dog’s heat cycle change over time?
Yes. Heat cycles may shift due to age, health, stress, or environmental changes.
Is this heat cycle tracker exact?
No. This tool provides an estimated planning window, not an exact prediction.
Does breed affect heat cycle timing?
Yes. Smaller breeds often cycle more frequently, while larger breeds may have longer intervals between heats.
Related breeder tools
This tool is for planning and educational purposes only and is not a substitute for veterinary guidance.