Sia Cooper, widely known as the Diary of a Fit Mommy, is one of the most influential fitness bloggers and personal trainers in the world. A mother and fitness advocate, she has built an empire of health content that resonates with millions of women navigating fitness through pregnancy, postpartum, and beyond.
Sia Cooper Personal Information
| Category | Details |
|---|---|
| Full Name | Sia Cooper |
| Known As | Diary of a Fit Mommy |
| Date of Birth | October 9, 1989 |
| Age | 37 years old (2026) |
| Birthplace | United States |
| Nationality | American |
| Profession | Fitness Blogger, Personal Trainer, Influencer |
| Spouse | Skyler Cooper |
Sia Cooper Body Measurements
| Measurement | Details |
|---|---|
| Height | 5 ft 4 in (163 cm) |
| Weight | ~120 lbs (54 kg) |
| Bust | 34 inches |
| Waist | 25 inches |
| Hips | 36 inches |
| Body Type | Fit / Toned |
| Eye Color | Brown |
| Hair Color | Dark Brown |
Sia Cooper Bio & Career
Sia Cooper launched her blog Diary of a Fit Mommy to document her fitness journey through pregnancy and motherhood. She is a certified personal trainer and has created numerous workout programs specifically designed for pregnant and postpartum women. Her honest, relatable content has made her one of the go-to resources for fitness during motherhood, with a social media following of millions across platforms.
Latest News – Sia Cooper (2026)
- Sia Cooper released updated prenatal and postpartum workout guides in early 2026 on her blog and app.
- She continues to collaborate with major fitness and nutrition brands targeting mothers and health-conscious women.
- Sia expanded her YouTube channel content in 2026, focusing on family fitness routines and healthy meal prep.
- Her blog Diary of a Fit Mommy reached a new milestone of 2 million monthly readers in 2026.
- She was featured in several top fitness publications as a leading voice in prenatal fitness in 2026.
Frequently Asked Questions
How old is Sia Cooper?
Sia Cooper was born on October 9, 1989, making her 36 years old in 2026.
How tall is Sia Cooper?
Sia Cooper stands at 5 feet 4 inches (163 cm) tall.
What is Diary of a Fit Mommy?
Diary of a Fit Mommy is Sia Cooper’s popular fitness blog and brand, focused on prenatal and postpartum fitness, nutrition, and healthy living for mothers.
Is Sia Cooper a certified trainer?
Yes, Sia Cooper is a certified personal trainer specializing in prenatal and postpartum fitness programs.
