CalcGlobe is a free all-in-one calculator and unit converter platform. 60+ calculators covering finance, science, engineering, medical reference, construction and health. No signup needed. Works on any device.
CalcGlobe's free unit converter supports 80+ categories including length, mass, temperature, speed, volume, area, pressure, energy, electrical units, and currency. Convert between metric and imperial units instantly. Popular conversions include ft to mm, kg to lbs, Celsius to Fahrenheit, USD to INR, litres to gallons, miles to kilometres, mph to kph, PSI to bar, and hundreds more. The currency converter uses live exchange rates updated daily from the European Central Bank. No signup required.
Quick reference: 1 foot = 304.8 mm. 1 kg = 2.20462 lbs. 0°C = 32°F. 1 mile = 1.60934 km. 1 litre = 0.264172 US gallons. 1 inch = 2.54 cm. 1 PSI = 0.0689476 bar. 1 kW = 1.34102 hp.
Calculate your monthly loan EMI (Equated Monthly Instalment) for home loans, car loans, personal loans, and education loans. Enter your principal amount, annual interest rate, and loan tenure to instantly get your monthly EMI, total payable amount, total interest payable, and a full month-by-month amortisation schedule. Supports INR, USD, GBP, EUR, and AED currencies.
EMI Formula: EMI = [P × R × (1+R)^N] / [(1+R)^N - 1] — where P is the principal loan amount, R is the monthly interest rate (annual rate divided by 12 divided by 100), and N is the number of monthly instalments.
Calculate SIP (Systematic Investment Plan) returns and find out how much wealth you can build by investing a fixed amount every month. Enter your monthly SIP amount, expected annual return percentage, and investment period in years to get your total corpus, total invested amount, and estimated returns. Includes year-by-year growth chart and lump sum calculator toggle.
SIP Formula: M = P × ({[1 + i]^n - 1} / i) × (1 + i) — where M is the maturity amount, P is the monthly SIP amount, i is the monthly return rate, and n is the number of months. Returns are estimated and not guaranteed.
Calculate GST (Goods and Services Tax) on any amount. Supports all Indian GST slabs — 5%, 12%, 18%, and 28%. Works in two modes: Add GST to calculate the final price including tax, or Remove GST to find the original base price before tax. Also supports UK VAT (20%), Australian GST (10%), and custom tax rates. Shows CGST and SGST breakdown for intra-state transactions.
Complete O-ring size reference covering the full AS568 American standard (dash numbers 001 through 475), ISO 3601 international metric standard, BS1806 British standard, and JIS B2401 Japanese standard. Look up any O-ring by code number or inner diameter to find the inner diameter (ID), cross section diameter (CS), and outer diameter (OD) in both millimetres and inches. Includes O-ring material selection guide covering NBR (Nitrile), FKM (Viton), EPDM, Silicone, and Neoprene with temperature ranges and chemical resistance ratings.
Complete IV cannula (intravenous catheter) size reference for clinical use. Covers gauge sizes 14G through 26G with ISO colour codes: 14G orange, 16G grey, 17G white, 18G green, 20G pink, 22G blue, 24G yellow, 26G purple. Shows flow rates in mL/min, outer diameter in mm, inner diameter, and recommended clinical uses for each gauge. Essential reference for nurses, paramedics, emergency medicine staff, and clinical educators.
Calculate the exact quantity of concrete materials needed for any construction project — slabs, foundations, columns, beams, and driveways. Enter your dimensions and concrete mix grade (M10, M15, M20, M25, M30, M35, or M40) to get the volume of concrete in cubic metres and cubic feet, number of 50kg cement bags needed, sand quantity in kg and cubic feet, aggregate quantity, and water required in litres. Includes 5–10% wastage factor adjustment.
Calculate your daily calorie needs using the Mifflin-St Jeor formula — the most accurate BMR equation for most adults. Enter your age, gender, height, weight, and activity level to get your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE). Get personalised calorie targets for weight loss (500 calorie deficit), maintenance, or muscle gain (300 calorie surplus). Includes macro breakdown showing recommended protein, carbohydrate, and fat intake for each goal.
CalcGlobe provides 60+ free calculators across 12 categories:
CalcGlobe is a free all-in-one calculator platform built for students, engineers, doctors, builders, finance professionals, and curious minds worldwide. Our mission is to make every calculation accessible to everyone, everywhere on the globe — no signup, no fees, no ads interrupting your work. All calculations are performed locally in your browser. No data is sent to our servers.
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