High-Precision Calculation Engines & Diagnostics
Free, private decision frameworks and diagnostic tools built for engineers, finance managers, students, and healthcare professionals.
Finance & Wealth
Step-Up SIP returns, 20-year Rent vs Buy simulations, home loan EMIs, GST add/reverse tax, and compounding growth models.
Explore 14 Tools →Diagnostics & IT
IPv4 CIDR subnet visualizer, IEEE MAC OUI vendor lookup, monitor dead-pixel testing, password entropy, and data transfer rates.
Network Stack Hub →Health & Fitness
BMI & BMR metric engines with South Asian cutoffs, daily TDEE calorie targets, heart rate zones, and ideal weight formulas.
Explore 8 Tools →Math & Geometry
Geometric area solvers, quadratic equation roots, percentage change, temperature scale conversions, and unit measurement tools.
Explore 10 Tools →Flagship Calculation Engines
SWP Retirement Calculator
Simulate monthly retirement cash flow, step-up inflation adjustments, and portfolio longevity.
Step-Up SIP Calculator
Simulate long-term wealth growth with automatic annual step-up percentages to beat inflation.
NPS Tier 1 vs Tier 2 Calculator
Compare Sec 80CCD(1B) tax savings against Tier 2 liquidity, E/C/G asset allocation, and slab tax rules.
Rent vs Buy Housing Simulator
Model 20-year homeownership costs against renting while investing surplus into equity mutual funds.
Subnet & CIDR Network Calculator
Convert IPv4 CIDR blocks, calculate usable host counts, wildcard masks, and cloud VPC subnets.
EMI & Loan Repayment Calculator
Calculate monthly loan repayments, total interest burden, and partial prepayment savings.
MAC Address Vendor Lookup
Query the IEEE Organizationally Unique Identifier (OUI) database to identify network hardware vendors.
BMI & BMR Clinical Calculator
Calculate Body Mass Index and Basal Metabolic Rate using population-adjusted Asian health cutoffs.
Recent Knowledge Guides
Should You Prepay Home Loan or Invest in SIP After Rate Hikes?
Mathematical comparison of loan interest savings vs equity mutual fund compounding under current Indian rates & tax rules.
Health & InsuranceHealth Insurance Super Top-Up Guide
How to structure ₹1 Crore health coverage under ₹18k/year while avoiding room rent capping traps.
Personal FinanceThe Indian FIRE Blueprint for Early Retirement
Calculating your 25x corpus target, safe withdrawal rates (SWR), and tax-efficient SWP strategies.
Career & Technology StrategyHow AI Will Impact Your Work in 2027
A story-driven, human guide on how AI agents and automation will reshape engineering, finance, and work by 2027.
AI & EngineeringAI RAG Architecture & Vector Similarity Math
Deconstructing vector embeddings, cosine similarity metrics, and LLM context chunking pipelines.
FinanceHome Loan Prepayment Math
Save ₹15 Lakhs in interest by making one extra EMI payment every year.
IT & NetworkingIP Subnetting for Cloud Engineers
Mastering CIDR blocks, VPC boundaries, and calculating usable hosts in AWS.
HealthTDEE & Calorie Deficit Math
The scientific approach to calculating basal metabolic rate and target calories.