What size is a regular shampoo bottle?

The size of a regular shampoo bottle can vary, but here are some common sizes:

1. Standard size: 
   - Typically around 12-16 fluid ounces (355-473 ml)
   - Height: Approximately 7-8 inches (18-20 cm)

2. Travel size:
   - Usually 3-3.4 fluid ounces (88-100 ml)
   - Height: About 3-4 inches (7.5-10 cm)

3. Family size or value size:
   - Can range from 24-40 fluid ounces (710-1180 ml) or more
   - Height: Roughly 8-10 inches (20-25 cm) or taller

4. Salon size:
   - Often 32 fluid ounces (946 ml) or larger

   - Height: Can be 10 inches (25 cm) or more

Keep in mind that these are general estimates, and actual sizes can vary depending on the brand, product line, and packaging design. Some brands may offer unique sizes or shapes that differ from these typical ranges.