Built for comparison
The best use of these tools is not grabbing one number and leaving. They are intended for testing scenarios, comparing assumptions, and tightening decisions before money is committed.
Calculator Directory
Browse the full calculator suite
This directory groups the tools by decision type so visitors can move from a quick estimate to the right supporting guide, methodology note, or adjacent calculator.
Linked to supporting content
Calculator pages are paired with methodology notes, trust pages, and long-form guides so visitors can understand what the output means and where simplifications remain.
Public support and corrections
If a page needs a correction or clarification, use the public contact page. The site is meant to be usable and auditable by visitors, not just browsable.
Business And Operations
Tools for pricing, profit planning, unit economics, e-commerce margin checks, and startup operating decisions.
Business planning
Break-Even Studio
Target-profit planning with safety buffer and sensitivity scenarios.
Startup cash flow
Runway Command Center
Cash survival horizon, hiring impact, and break-even timing.
Pricing strategy
SaaS Pricing Lab
Margin-first pricing with churn and competitor context.
Unit economics
CLV Intelligence
LTV:CAC efficiency and payback quality checks.
SIP & Lumpsum modes
SIP Calculator
Step-up SIP growth with inflation-adjusted value.
Portfolio tracking
XIRR Calculator
Calculate annualized returns for irregular cash flows.
E-commerce
Amazon Seller Profit
FBA & FBM margins, ROI, and net profit with dynamic INR/USD rules.
E-commerce India
Flipkart Seller Profit
FBF & Self-ship margins, Fixed/Collection fees, and net profit for INR.
Restaurant & F&B
Food Delivery Margin
Simple menu-wide price hike, basic online price match, and advanced Swiggy, Zomato, and ONDC restaurant ledger.
SaaS & LLMs
AI API Cost
Compare GPT-4o, Claude, & Gemini inference costs and RAG pipeline scaling.
Web Publishing
AdSense Publisher
Reverse-engineer website pageviews, AdBlock bleed, and programmatic profit.
Tax Planner
In-Hand Salary
Convert your CTC to actual in-hand monthly take-home pay based on the New Tax Regime.
Career Growth
Salary Hike
Calculate your new salary after a percentage hike or find the hike needed for a target salary.
Real Estate
Property ROI
Calculate cash-on-cash return, cap rate, and net operating income for real estate deals.
Brand Strategy
Business Numerology
Analyze your brand name using Chaldean and Pythagorean numerology systems.
Wealth, Tax, And Salary
Tools for tax comparison, take-home pay, savings growth, retirement withdrawals, and deposit planning.
Tax planner
GST Calculator
Add or remove GST instantly from billed amounts.
FY 2025-26
Tax Estimator
Old vs new regime comparison with slab-level visibility.
Guaranteed returns
Fixed Deposit
Calculate precise FD maturity and interest earned.
Monthly savings
Recurring Deposit
Track RD maturity with staggered monthly investments.
Retirement corpus
EPF Calculator
Forecast your provident fund maturity timeline.
Retirement income
SWP Calculator
Withdrawal sustainability and corpus depletion timeline.
Wealth Strategy
Rent vs Buy
Compare net worth trajectories for buying a home versus renting & investing the difference.
Property And Mortgage
Tools for EMI planning, down payment trade-offs, property ROI, and rent-versus-buy decisions.
Creator And Technical Tools
Tools for creator monetization, publishing economics, API cost planning, and utility workflows.
Creator Economy
Instagram Influencer
Estimate post, reel, and story payouts with global geography & niche multipliers.
Creator Economy
YouTube RPM & Revenue
Calculate AdSense RPM constraints and sponsorship potential globally.
Self-Publishing
Amazon KDP Profit
Masterpiece calculator for Amazon eBook, Paperback, Hardcover, and KENP margins.
Utility
Age & Time
Calculate your exact age in years, months, days, hours, and seconds lived.
Developer Tool
Epoch Converter
Convert Unix timestamps to human-readable dates instantly with millisecond support.
Guides
Read long-form explainers before using a result in a real decision.
Methodology
Inspect the site-wide handling of formulas, assumptions, and updates.
Editorial Standards
Review how the site treats originality, corrections, and monetization boundaries.