Guinea Pig Weight Tracker

Why Tracking Your Guinea Pig's Weight Matters

Weight tracking is one of the most important health monitoring tools for guinea pig owners. Guinea pigs are prey animals that instinctively hide signs of illness. By the time they show obvious symptoms like lethargy or loss of appetite, the condition may already be advanced. Weight changes, however, are measurable and often the very first indicator that something is wrong.

Normal Guinea Pig Weight Range

Adult guinea pigs typically weigh between 900 and 1,200 grams (2 to 2.6 pounds). Males (boars) tend to be slightly larger than females (sows). Young guinea pigs gain weight rapidly, reaching adult size by about 6-8 months of age. A healthy adult weight should remain relatively stable with minor fluctuations of 10-20 grams day to day.

Warning Signs in Weight Trends

• Sudden drop of 50g+ (1.8 oz) — Could indicate dental problems, GI stasis, or infection
• Weight loss of more than 10% over a few days — Requires immediate veterinary attention
• Consistent downward trend for 3+ days — Schedule a vet visit, even if the pig seems fine
• Rapid weight gain — May indicate pregnancy, ovarian cysts, or overfeeding
• No weight gain in a growing pig — Could indicate malnutrition or parasites

How to Weigh Your Guinea Pig

Use a digital kitchen scale with 1g precision for the most accurate readings. Place a small bowl or basket on the scale, tare it to zero, then place your guinea pig inside. Weigh at the same time each day for consistency — morning is ideal, before feeding. Record the weight immediately in this tracker. Weekly weigh-ins are the minimum; daily is better for pigs with known health issues.