| What it does | UK calculators for work, hours and pay with every figure cited to source
| Free Karvonen formula heart rate zone calculator
|
|---|
| Stage | Not given
| Established
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | GB
| Not given
|
|---|
| Pricing model | Free
| Free
|
|---|
| Pricing | Not given
| Not given
|
|---|
| Key features | - Timesheet calculator
- Minimum wage checker
- Take-home pay calculator
- Holiday entitlement calculator
- Maternity pay calculator
- Redundancy pay calculator
- Sources cited with dates
- Shows calculation workings
- Letter templates
- Guides explaining rules
| - Five personalized training zones based on heart rate reserve
- Accounts for resting heart rate and cardiovascular fitness
- Custom maximum heart rate input from multiple formulas
- No signup required, runs entirely in browser
- Weekly resting heart rate logging and progress tracking
- Zone-specific training guidance for different goals
- Shareable and printable zone results
- Embeddable calculator widget for websites
|
|---|
| What makes it different | - Every figure cited to its source with dates so you can check rather than trust
- All workings shown step by step for every calculation
- No sign-up required and nothing stored from calculators
- Covers all four UK jurisdictions including Scotland and Northern Ireland
- Honest about areas where the law is genuinely unsettled
| - More accurate than age-only formulas, accounting for individual cardiovascular fitness
- Zones adapt as your fitness improves and resting heart rate drops
- Based on 1957 Karvonen research used by coaches and sports scientists
- Independent, no data collection or external servers
- No ads inside the calculator, free to use with optional embedding
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 11 ● no change since last check |
|---|
| Trust Flow (Majestic) | 0 | 19 |
|---|
| Citation Flow (Majestic) | 4 | 25 |
|---|
| Referring domains (Majestic) | 2 | 40 |
|---|
HoursHQ
CalculateMyHeartRate