ToolsMetrics | Free Online Unit Converters & Calculators

Unit Converters

Length (km, miles)

Length Converter: km to miles, and distance.

Weight (kg, lbs)

Weight Converter: kg to pounds, and mass.

Temperature (°C, °F)

Temperature (°C, °F), set to standard.

Financial Calculators

Salary Calculator

Salary and Tax Calculator for net pay.

Tax & VAT

Tax & VAT Calculator incl. returning values.

Loan Calculator

Loan Calculator computes average monthly payments.

Math & Science

Percentage Calculator

Percentage Calculator: specific scientific tools.

Probability Calculator

Calculate the probability of single or multiple events.

Physics Units

Physics Units to convert physics elements.

Fitness & Health

BMI Calculator

Smart BMI & Body Metrics Calculator with Athlete Mode.

BMR Calculator

Basal Metabolic Rate & Total Daily Energy Expenditure (TDEE) calculator.

Ideal Weight Calculator

Advanced Ideal Weight & Body Frame Calculator using Devine, Robinson, Miller, and Hamwi formulas.

Online Tools

Password Generator

Create strong and secure passwords with customizable options.

QR Code Generator

Generate QR codes for URLs, text, and contact information.

Color Converter

Convert colors between HEX, RGB, HSL, and CMYK formats.

Construction Calculators

Concrete Calculator

Calculate concrete volume and cost for slabs, footings, and columns.

Roofing Calculator

Estimate roofing materials and costs for your house.

Flooring Calculator

Calculate floor area and materials needed for tiles, wood, or laminate.

Most Popular Tools

CM to Inches

KG to LBS

°C to °F

MM to Inches

Meters to Feet

KM to Miles

CM to Feet

Grams to Ounces

Inches to Feet

Liters to Gallons

Pounds to Ounces

MPH to KPH

Acres to Sq Ft

Radians to Degrees

HP to KW

Meters to Yards

mL to Cups

VAT Calculator

Salary Calculator

Loan Calculator

Percentage Calculator

Probability Calculator

MB to GB

Sq Meters to Sq Ft

Cost of Child

Crypto Tax Calculator

Credit Card Min Payment

FIRE Calculator

Body Fat Calculator

Heart Risk Calculator

Menstrual Cycle Calculator

Blood Alcohol Calculator (BAC)

CSV & Excel Repair Studio

Subnet & CIDR Calculator

EXIF Metadata Viewer & Privacy Stripper

JSON Formatter

SEO Slug & URL Generator

BTU & Room Heating/Cooling Calculator

Gutter & Downspout Materials Calculator

Project Labor & Material Estimator

Wire Size & Voltage Drop Calculator

Paver, Sand & Base Calculator