Area ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Area converts via square metres. 1 acre = 4,046.86 m², 1 hectare = 10,000 m², 1 ft² = 0.092903 m².
Open calculator →Methodology
How beMyCalc builds, tests, and documents all 123 calculators — formulas, data sources, and assumptions.
Jump to all calculator formulas →
Calculations run in your browser
When you move a slider or type an amount, the math runs locally in your browser. We do not send loan balances, salaries, or investment amounts to our servers. Share links encode your inputs in the URL so you can bookmark or send a scenario — treat shared URLs like any link that contains personal numbers.
Standard formulas
Most tools use widely published financial math: reducing-balance EMI amortization, compound interest, SIP future value, CAGR, present/future value, and similar textbook formulas. Below you'll find every calculator with its formula and a link to the live tool. Each calculator page also has a "How we calculate" panel with the same equation.
India tax & government schemes
India income tax, HRA, and regime-compare tools use slab rates and deductions documented for FY 2024-25 (AY 2025-26). PPF, NPS, SSY, NSC, and similar scheme calculators let you enter the notified interest rate — we do not hard-code a single live government rate unless the tool explicitly states one as a default example.
Scheme limits (80C cap, PPF yearly maximum, etc.) follow commonly cited rules at the time of the last review. Indian rules change in Union Budgets and notifications — always confirm with the Income Tax portal, EPFO, or your chartered accountant before filing or investing.
Currency exchange rates
The currency converter fetches indicative mid-market rates from the Frankfurter API (European Central Bank reference data), cached for about an hour. Banks and card networks apply their own spreads and fees — use the exchange calculator to model fees separately.
Worked examples & guides
Calculator pages show sample scenarios (e.g. ₹10L loan at 8.5% for 20 years). These are illustrations to explain the tool, not recommendations. Guides on /guides link to calculators so you can replace example numbers with your own.
How we update tools
- India tax slabs and standard deductions when a new financial year is notified.
- Default example rates when major scheme notifications change.
- Formula bugs reported via contact or on-page "Report an issue" links.
- New calculators when user demand and formula clarity justify a dedicated tool.
Report an error
Found a wrong formula, outdated slab, or broken share link? Use our contact form with the calculator URL and your expected result.
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All calculator formulas
13 tools in Converters — showing 1–13
All calculators (123)India tax & schemes (18)Investment (13)Loans (14)Interest (2)Deposits (8)Retirement (7)Returns (4)Salary & Payroll (9)Tax (8)Property & Real Estate (5)Trading & Investing (11)Business (4)Currency (2)Budgeting & Planning (3)Health & Wellness (5)Converters (13)Everyday Tools (15)
Color ConverterConverters
Parse color input → RGB values → output HEX, rgb(), rgba(), hsl(), hsla()
Type a HEX code (#FF8000), rgb(), hsl(), or a named color (e.g. teal). We parse it and show all formats with a live swatch preview.
Open calculator →Density ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Density converts via kg/m³. 1 g/cm³ = 1,000 kg/m³. Water is roughly 1 g/mL or 1,000 kg/m³.
Open calculator →Digital Storage ConverterConverters
result = input × (1024^from ÷ 1024^to) using binary byte factors
Uses binary prefixes: 1 KB = 1,024 B, 1 MB = 1,024 KB, and so on — the usual convention for memory and most OS-reported file sizes. Drive packaging sometimes uses decimal (1,000) GB instead.
Open calculator →Energy ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Energy converts through joules. 1 kWh = 3.6 MJ, 1 kcal = 4,184 J, 1 BTU ≈ 1,055 J.
Open calculator →Flow Rate ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Flow rate converts through litres per second. Useful for plumbing, HVAC, and pump sizing.
Open calculator →Length ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Enter a length value, choose the unit you have and the unit you want. Conversion uses SI-based factors (1 m = 3.28084 ft, 1 mi = 1.609344 km, etc.).
Open calculator →Power ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Power converts via watts. 1 hp (US) ≈ 745.7 W, 1 metric PS ≈ 735.5 W, 1 kW = 1,000 W.
Open calculator →Pressure ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Pressure converts through pascals. 1 bar = 100,000 Pa, 1 atm = 101,325 Pa, 1 psi ≈ 6,894.76 Pa.
Open calculator →Speed ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Speed converts through metres per second. 1 km/h = 0.277778 m/s, 1 mph = 0.44704 m/s, 1 knot = 0.514444 m/s.
Open calculator →Temperature ConverterConverters
Convert via Kelvin: K = °C + 273.15; °F = (°C × 9/5) + 32; °R = K × 9/5
Temperature uses offset formulas (not simple ratios). We convert through Kelvin: °F = (°C × 9/5) + 32, K = °C + 273.15.
Open calculator →Volume ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Volume converts via litres as the base. US and UK gallons differ — pick the correct gallon type for cooking or fuel calculations.
Open calculator →Weight ConverterConverters
result = input × (factor_from ÷ factor_to) relative to the SI base unit for this type
Pick your weight value and units. Kilograms are the base — 1 kg = 2.20462 lb, 1 stone = 6.35029 kg, and so on.
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