| What it does | Free Karvonen formula heart rate zone calculator
| Free online retirement planning calculator for India's National Pension System
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| Stage | Established
| Startup
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| Founded | Not given
| 2025
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| Based in | Not given
| IN
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - 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
| - Retirement corpus estimation based on monthly contributions and expected returns
- Monthly pension calculation with annuity rates
- Lump sum withdrawal calculator at retirement
- Section 80CCD tax deduction calculator
- Inflation-adjusted retirement values
- Step-up SIP contribution support
- NPS vs PPF vs UPS vs EPF comparison
- NPS Vatsalya calculator for children
- AI-powered retirement insights and recommendations
- Year-by-year wealth growth visualization
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| What makes it different | - 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
| - Covers NPS Tier 1, Tier 2, NPS Vatsalya, and multiple comparison tools in one platform
- Shows inflation-adjusted retirement corpus in today's purchasing power
- No registration required and inputs stay private in browser
- Regularly updated with latest PFRDA guidelines and tax laws
- Educationally focused with explanations, formulas, and real-world examples
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 11 ▲ +1 (up) since last check | 30 ● no change since last check |
| Trust Flow (Majestic) | 19 | 0 |
| Citation Flow (Majestic) | 25 | 11 |
| Referring domains (Majestic) | 40 | 1 |