All Financial Calculators
15 professional tools covering advertising ROI, investment growth, tax planning, SaaS metrics, e-commerce profitability, and general-purpose math utilities.
Marketing Analytics Suite
RoAS Planner
Calculate Return on Ad Spend, break-even RoAS, and daily campaign performance. Know when to scale and when to pause.
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MarketingA/B Split-Test Engine
Two-proportion Z-test to determine if conversion rate differences between variants are statistically significant at 95%+ confidence.
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Business & E-Commerce Suite
SaaS CAC & LTV
Customer Acquisition Cost, Lifetime Value, LTV:CAC ratio, ROI, payback period, and gross margin in one engine.
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E-CommerceE-Commerce Profit
True profit after product cost, shipping, platform fees (Shopify/Amazon), payment gateway, and ad spend per unit.
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BusinessProfit Margin
Calculate profit, margin %, and markup % for any product or service. Understand the difference to avoid underpricing.
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BusinessInvoice Tracker
Calculate gross invoice, platform fee deductions, tax withholding, and true net earnings for freelancers.
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BusinessFreelancer Rate
Calculate ideal hourly/daily rate based on income goals, expenses, taxes, vacation, and profit margin targets.
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Personal Finance & Tax Suite
Compound Interest
See how money grows with compound interest plus optional monthly contributions. Includes interactive growth chart.
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InvestmentSIP Planner
Project the future value of monthly Systematic Investment Plans with interactive portfolio growth visualization.
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TaxIncome Tax
Progressive tax slab calculator for salaried and self-employed. Shows effective rate, take-home pay, and slab breakdown.
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SavingsSavings Goal
Calculate exactly how much to save monthly to reach a specific financial goal with investment returns factored in.
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RetirementRetirement Planner
Inflation-adjusted retirement corpus calculator showing how much you need and how much to save monthly.
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Crypto & Currency Tools
General Utility Calculators
Simple Calculator
Instant addition, subtraction, multiplication, division, and percentage operations via the built-in toolbar calculator. Zero-latency, client-side math.
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UtilityScientific Calculator
Advanced engineering formulas: trigonometry (sin, cos, tan), logarithms, square roots, exponents, and order-of-operations algebraic expressions.
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Features Across All Calculators
Global Currency
Switch between 8 currencies (USD, EUR, GBP, PKR, INR, AED, CAD, AUD) and all calculators update instantly.
Save to Browser
Save your inputs locally and restore them when you return. No account required.
Export Reports
Download results as PDF, CSV, or XLSX for records, presentations, or client reports.
PWA Install
Install FinCalcHub to your home screen for instant access. Works offline with cached data.
100% Client-Side
All calculations happen in your browser. No data is sent to any server. Your inputs stay private.