How much does a grey mouse weigh? - briefly
The average weight of a grey house mouse ranges from 15 to 30 grams (about 0.5–1.0 oz). Individual specimens may vary slightly depending on age, sex, and nutrition.
How much does a grey mouse weigh? - in detail
A grey mouse typically weighs between 15 and 30 grams. The range reflects variations in species, age, sex, and environmental conditions.
- Species differences: House mice (Mus musculus) average 18–25 g, while related field mice (Apodemus sylvaticus) can reach up to 30 g.
- Age factor: Newborns are under 2 g; juveniles increase rapidly, attaining adult weight by 6–8 weeks.
- Sexual dimorphism: Males often exceed females by 2–4 g, though the gap narrows in laboratory strains.
- Dietary impact: High‑calorie feedings can add 3–5 g over baseline; restricted diets reduce mass accordingly.
- Environmental stress: Cold environments may induce a modest increase in body fat, raising weight by 1–2 g.
Measurements are usually taken with a precision balance (0.01 g resolution). Researchers report weight in grams for small rodents; occasional conversions to ounces (1 g ≈ 0.035 oz) aid cross‑disciplinary communication.
Comparative data: a typical laboratory grey mouse at 20 g is roughly one‑third the weight of a standard adult house sparrow (≈ 50 g) and one‑tenth the weight of a common rabbit (≈ 2000 g).
Accurate weight assessment is essential for dosing pharmaceutical compounds, calculating metabolic rates, and monitoring health status in both research and pet‑keeping contexts.