# FIRE Calculator vs OIData: which to pick

> FIRE Calculator vs OIData: pricing, platforms, launches, upvotes and makers side by side on ProductsFarm, with notes on which to pick.

Canonical: https://productsfarm.com/compare/fire-calculator-vs-oidata
Last updated: 2026-11-05

|  | [FIRE Calculator](https://productsfarm.com/product/fire-calculator) | [OIData](https://productsfarm.com/product/oidata) |
| --- | --- | --- |
| What it is | Estimate your FIRE number and test retirement savings with simulations | Open interest analytics for Indian index, stock and commodity options and |
| Pricing | Free | Paid |
| Platforms | Web | API, Web |
| Categories | Finance | Analytics, Finance |
| Made for | early retirement planners, financial independence savers, personal finance savers | options traders, derivatives traders, market analysts |
| Built with | [Cloudflare](https://productsfarm.com/tech-stack/cloudflare) | [Vue](https://productsfarm.com/tech-stack/vue), [Cloudflare](https://productsfarm.com/tech-stack/cloudflare), [Bootstrap](https://productsfarm.com/tech-stack/bootstrap) |
| Upvotes | 0 | 0 |
| Website | [firecalculator.co.in](https://firecalculator.co.in/) | [oidata.in](https://www.oidata.in/) |

## About FIRE Calculator

FIRE Calculator is a free web tool for planning financial independence and early retirement. Enter monthly retirement expenses, your invested portfolio, monthly contributions and assumptions for returns and inflation to estimate a FIRE number: annual expenses divided by a chosen withdrawal rate, adjusted for inflation up to your target age.

An optional Monte Carlo simulation runs random market paths with varying returns and withdrawals, showing percentile charts and a downloadable CSV. The planner also estimates a financial independence age and the starting monthly investment needed. Users can pick one of 25 currencies.

It suits people comparing early retirement scenarios and withdrawal rates such as 3%, 3.5% and 4%. Taxes, fees, pensions and local account rules are not modelled, so results are planning estimates, not guarantees.

## About OIData

OIData is a web dashboard for reading open interest in Indian derivatives markets. It covers NIFTY, SENSEX, NIFTY BANKNIFTY and other indices, around 200 F&O stocks, and nine MCX commodities including crude oil, gold, silver and natural gas. Users connect their own SEBI-registered broker account, and the tool displays and analyses the market data available through that connection. It does not place orders.

The suite includes a live option chain with max pain and support and resistance levels, Trending OI, a Session Chart with call and put walls, the pin, the gamma flip and VWAP drawn at their prices, and a Dealer Positioning view that shows net GEX by strike. There are also screeners for gamma exposure, trending OI and futures buildups, a Market Mood Index, India VIX and IV surface views, straddle and strangle premium tracking, strike history from listing to expiry, FII and DII activity, and seasonal charts. Alerts can be sent on Telegram.

It is aimed at active index and derivatives traders and market analysts in India who want open interest data in one place. OIData is not a SEBI-registered adviser and states that its outputs are for research and education, not buy or sell recommendations.

## Related

- [FIRE Calculator](https://productsfarm.com/product/fire-calculator)
- [OIData](https://productsfarm.com/product/oidata)
- [More comparisons](https://productsfarm.com/compare)