| What it does | Free calculators for sleep, mental wellbeing, recovery, fitness, nutrition and healthy living
| Calculate your Body Roundness Index instantly. Free, Fast, and Revealing.
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | Not given
| Not given
|
|---|
| Pricing model | Free
| Free
|
|---|
| Pricing | Not given
| Not given
|
|---|
| Key features | - Sleep Cycle Calculator for planning bedtimes based on 90-minute cycles
- Bedtime Calculator to find sleep time based on wake-up time and duration
- Wake-Up Time Calculator based on bedtime and sleep cycles
- Sleep Debt Calculator to estimate missed sleep over a week
- Caffeine Half-Life Calculator to estimate caffeine remaining in body
- How Much Sleep Do I Need Calculator with age-based estimates
- 20 calculator hubs across Sleep, Mind, Body, Family and Lifestyle categories
- Transparent formulas showing the math behind each result
- Evidence-based references citing primary sources
- Editorial and clinical review for sensitive health tools
| - Free calculation with no registration required
- Optional gender and age personalization
- Average BRI data by age and gender
- Interpretation guidance for results
- Detailed waist measurement instructions
- Comparison with BMI
- Health risk assessment based on BRI ranges
|
|---|
| What makes it different | - Private calculations in browser with no account required or personal data selling
- Transparent formulas and methodology for every calculator
- Evidence-based content citing primary sources not rewrites
- Regularly updated formulas with versioning and review dates
| - Uses waist circumference for more accurate body composition assessment than BMI
- Better at predicting cardiovascular health risks
- More sensitive to changes in body shape and fat distribution
- Provides accurate results for people with high muscle mass
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 17 ● no change since last check | 25 ● no change since last check |
|---|
| Trust Flow (Majestic) | 0 | 7 |
|---|
| Citation Flow (Majestic) | 10 | 18 |
|---|
| Referring domains (Majestic) | 16 | 55 |
|---|
WowSleepCalculator
BRI Calculator