Education Tools

Boost productivity with focused work sessions and timed breaks using the proven Pomodoro Technique

Manage and view events by day, week, or month in a smart calendar interface

Create, edit, save and manage notes directly in your browser.

Measure elapsed time with start, stop, lap, and reset functionalities.

Set custom countdown timers with pause, resume, and audio alerts. Perfect for productivity and time management

Build a smart grocery list with categories, quantities, and mobile-friendly checkoff

Set medication schedules with doses, times, and browser reminders that stay private in your browser

Convert between metric, imperial, and other length units including meters, kilometers, inches, feet, miles, and more with real-time conversion

Convert between metric and US customary volume units including mL, L, tsp, tbsp, fl oz, cups, pints, quarts, and gallons with real-time conversion

Convert between metric, imperial, scientific, and other weight units including kilograms, pounds, ounces, grams, and more with precision control

Convert between square meters, square feet, acres, hectares, and other area units for real estate, construction, and land measurement with high precision

Convert between speed units including km/h, mph, m/s, knots, and Mach number. Perfect for road travel, aviation, maritime, and scientific calculations

Convert between torque units including N⋅m, lbf⋅ft, kgf⋅m, dyn⋅cm, and more. Perfect for engineering, automotive, and mechanical applications

Convert between frequency units including Hz, kHz, MHz, GHz, RPM, and more. Perfect for electronics, audio engineering, and scientific calculations

Convert between time units including seconds, minutes, hours, days, weeks, months, and years. Perfect for scheduling, project management, and daily calculations

Convert between data storage units including bits, bytes, KiB, MiB, KB, MB, and more. Perfect for computing, file management, and digital storage calculations

Convert between astronomical distance units including AU, light years, parsecs, kilometers, and miles. Essential for astrophysics, space exploration, and astronomy education.

Convert between molarity units including mol/L, g/L, ppm, and % solution. Essential for chemistry labs, biology research, and pharmaceutical industry.

Convert between force units including newtons, pound-force, dynes, and kilogram-force. Essential for physics, engineering, construction, and automotive applications.

Convert between coordinate systems including decimal degrees, DMS, UTM, and MGRS. Essential for GPS navigation, surveying, mapping, and military applications.

Convert between different hardness scales including Mohs, Rockwell, Vickers, and Brinell. Essential for materials science, metallurgy, and quality control.

Convert between different radiation units including gray, rad, sievert, and rem. Essential for health physics, nuclear science, and medical imaging.

Convert between photon energy units including eV, nm, Hz, and joules. Essential for optics, spectroscopy, and quantum physics.

Convert between different coordinate systems including decimal degrees, DMS, UTM, and MGRS. Essential for GPS navigation, surveying, mapping, and military applications.

Convert between different viscosity units including Pa·s, poise, centipoise, and stokes. Essential for chemical engineering, fluid dynamics, and materials science.

Convert between different fuel consumption units including mpg, L/100km, km/L, and gal/mi. Essential for automotive, transportation, and fuel efficiency calculations.

Convert between cooking units including cups, tablespoons, grams, ounces, and more. Perfect for recipe conversion, international cooking, and baking.

Convert between logarithmic units including decibels, power ratios, intensity ratios, and more. Essential for audio engineering, signal processing, and acoustics.

Convert between concentration units including mass fraction, mole fraction, ppm, ppb, and more. Essential for chemistry labs, environmental testing, and pharmaceuticals.

Convert between blackbody radiation peak units including temperature, wavelength peak (λmax), and frequency peak (νmax). Essential for astrophysics, thermal physics, and materials science.

Convert between environmental dose units including rad, gray, sievert, and rem. Essential for radiological protection, environmental monitoring, and health physics.

Convert between soil moisture units including volumetric, gravimetric, and saturation percentage. Essential for agriculture, geoscience, soil science, and environmental monitoring.

Convert between pressure units including Pa, bar, atm, PSI, mmHg, and more. Perfect for engineering, physics, chemistry, and everyday applications

Convert between flow rate units including L/s, m³/h, gal/min, cfm, and more. Perfect for HVAC, plumbing, chemical engineering, and irrigation applications

Convert between energy units including joules, calories, kilowatt-hours, BTUs, electron volts, and more. Perfect for physics, engineering, chemistry, and everyday calculations

Convert between power units including watts, kilowatts, horsepower, BTUs per hour, and more. Perfect for electrical engineering, mechanical systems, and power calculations

Convert between angle units including degrees, radians, gradians, and more. Perfect for mathematics, engineering, navigation, and scientific calculations

Convert between density units including kg/m³, lb/ft³, g/cm³, and more. Perfect for physics, chemistry, engineering, and material science calculations

Convert between pH values, hydrogen ion concentrations (H+), hydroxide ion concentrations (OH-), and pOH. Essential for chemistry labs and water quality testing

Convert between g-force, acceleration (m/s², ft/s²), Gal, and related units. Essential for physics, aerospace, and automotive testing

Convert between W/m², mW/cm², BTU/hr·ft², cal/cm²·min, erg/cm²·s, and solar flux units. Essential for optics, solar energy, and environmental science

Convert between heat transfer coefficient units including W/m²·K, BTU/hr·ft²·°F, cal/s·cm²·°C, and more. Perfect for engineering, HVAC, construction, and thermal analysis

Convert between polar coordinates (r, θ), Cartesian coordinates (x, y), and complex numbers. Perfect for mathematics, physics, engineering, and signal processing

Convert between matrix units, determinants, eigenvalues, and normalized values with dimension normalization. Perfect for linear algebra, engineering calculations, and scientific computing

Calculate essential statistical measures including mean, median, mode, standard deviation, variance, and correlation. Perfect for data analysis, research, business analytics, and education

Convert between AWG, SWG, millimeters, and inches for electrical engineering and manufacturing

Convert between pressure, volume, temperature, and moles using the ideal gas law (PV = nRT)

Convert between salinity and total dissolved solids units including PSU, g/kg, mg/L, and more

Convert between dry volume units including bushels, pecks, dry gallons, and more. Perfect for agriculture, grain storage, and bulk material handling

Convert between angular velocity units including rad/s, deg/s, RPM, and more. Essential for mechanical engineering, robotics, and rotational motion analysis

Convert between acceleration units including m/s², ft/s², g-force, and more. Essential for physics, automotive testing, and aerospace applications

Convert between angular acceleration units including rad/s², deg/s², and more. Essential for mechanical engineering and rotational dynamics

Convert between specific volume units including m³/kg, ft³/lb, and more. Essential for thermodynamics and fluid mechanics

Convert between moment of inertia units including kg·m², lb·ft², and more. Essential for mechanical engineering and rotational dynamics

Convert between moment of force units including N·m, lbf·ft, and more. Essential for mechanical engineering and statics

Convert between fuel efficiency units based on mass including g/kWh, lb/hp·hr, and more. Essential for automotive engineering and fuel analysis

Convert between fuel efficiency units based on volume including L/100km, mpg, and more. Essential for automotive engineering and fuel analysis

Convert between temperature interval units including K, °C, °F, and °R. Essential for thermodynamics and temperature difference calculations

Convert between thermal expansion coefficient units including 1/K, 1/°C, 1/°F, and more. Essential for materials science and engineering

Convert between thermal resistance units including K/W, °C/W, °F·hr/BTU, and more. Essential for heat transfer and insulation analysis

Convert between thermal conductivity units including W/m·K, BTU/hr·ft·°F, cal/s·cm·°C, and more. Essential for heat transfer analysis

Convert between specific heat capacity units including J/kg·K, BTU/lb·°F, cal/g·°C, and more. Essential for thermodynamics and heat calculations

Convert between heat density units including J/m³, BTU/ft³, cal/cm³, and more. Essential for heat storage and thermal analysis

Convert between heat flux density units including W/m², BTU/hr·ft², cal/s·cm², and more. Essential for heat transfer analysis

Convert between mass flow rate units including kg/s, lb/min, g/h, and more. Essential for chemical engineering and fluid dynamics

Convert between molar flow rate units including mol/s, kmol/h, lbmol/min, and more. Essential for chemical engineering and reaction kinetics

Convert between mass flux density units including kg/m²·s, lb/ft²·hr, g/cm²·min, and more. Essential for mass transfer analysis

Convert between molar concentration units including mol/L, mol/m³, lbmol/ft³, and more. Essential for chemistry and chemical engineering

Convert between solution concentration units including %, ppm, ppb, mg/L, and more. Essential for chemistry and environmental analysis

Convert between dynamic viscosity units including Pa·s, poise, centipoise, and more. Essential for fluid dynamics and rheology

Convert between kinematic viscosity units including m²/s, stokes, centistokes, and more. Essential for fluid dynamics and flow analysis

Convert between surface tension units including N/m, dyn/cm, lb/ft, and more. Essential for fluid mechanics and interfacial phenomena

Convert between permeability units including m², darcy, millidarcy, and more. Essential for petroleum engineering and porous media flow

Convert between luminance units including cd/m², nit, stilb, lambert, and more. Essential for lighting design and photometry

Convert between luminous intensity units including candela, lumen/steradian, and more. Essential for lighting design and photometry

Convert between illumination units including lux, foot-candle, phot, and more. Essential for lighting design and photometry

Convert between digital image resolution units including DPI, PPI, pixels/cm, and more. Essential for digital imaging and printing

Convert between frequency and wavelength units including Hz, THz, nm, μm, and more. Essential for optics and electromagnetic wave analysis

Convert between electric charge units including coulombs, ampere-hours, faradays, and more. Essential for electrical engineering and electrochemistry

Convert between linear charge density units including C/m, C/cm, and more. Essential for electrical engineering and electrostatics

Convert between surface charge density units including C/m², C/cm², and more. Essential for electrical engineering and electrostatics

Convert between volume charge density units including C/m³, C/cm³, and more. Essential for electrical engineering and electrostatics

Convert between electric current units including amperes, milliamperes, microamperes, and more. Essential for electrical engineering

Convert between linear current density units including A/m, A/cm, and more. Essential for electrical engineering and electromagnetics

Convert between surface current density units including A/m², A/cm², and more. Essential for electrical engineering and electromagnetics

Convert between electric field strength units including V/m, V/cm, kV/m, and more. Essential for electrical engineering and electrostatics

Convert between electric potential units including volts, millivolts, kilovolts, and more. Essential for electrical engineering

Convert between electric resistance units including ohms, milliohms, kilohms, and more. Essential for electrical engineering

Convert between electric resistivity units including Ω·m, Ω·cm, μΩ·cm, and more. Essential for electrical engineering and materials science

Convert between electric conductance units including siemens, millisiemens, and more. Essential for electrical engineering

Convert between electric conductivity units including S/m, S/cm, mS/cm, and more. Essential for electrical engineering and materials science

Convert between capacitance units including farads, microfarads, picofarads, and more. Essential for electrical engineering

Convert between inductance units including henries, millihenries, microhenries, and more. Essential for electrical engineering

Convert between magnetomotive force units including ampere-turns, gilberts, and more. Essential for electrical engineering and electromagnetics

Convert between magnetic field strength units including A/m, Oe, and more. Essential for electrical engineering and electromagnetics

Convert between magnetic flux units including webers, maxwells, and more. Essential for electrical engineering and electromagnetics

Convert between magnetic flux density units including teslas, gauss, and more. Essential for electrical engineering and electromagnetics

Convert between radiation activity units including becquerels, curies, and more. Essential for nuclear physics and medical imaging

Convert between radiation exposure units including roentgens, C/kg, and more. Essential for health physics and radiation protection

Convert between radiation absorbed dose units including grays, rads, and more. Essential for health physics and medical physics

Convert between SI prefixes including kilo, mega, giga, milli, micro, nano, and more. Essential for scientific notation and unit scaling

Convert between data transfer rate units including bits/s, bytes/s, Mbps, Gbps, and more. Essential for networking and data communication

Convert between sound units including decibels, bel, neper, and more. Essential for audio engineering and acoustics

Convert between typography units including points, picas, ems, rems, and more. Essential for graphic design and web development

Calculate percentages, percentage increase/decrease, find percentage of a number, and solve percentage problems with step-by-step solutions

Add, subtract, multiply, divide fractions, convert to decimals, and simplify fractions with step-by-step solutions

Calculate mean, median, mode, range, standard deviation, and variance with step-by-step calculations and data visualization

Convert between lumber volume units including board feet, cubic meters, cubic feet, and more. Essential for woodworking and construction

Calculate powers with negative and fractional exponents plus expanded form guidance

Calculate factorial values (n!) with exact results, digit counts, and reusable history

Basic calculator for addition, subtraction, multiplication, and division operations

Calculate SIP returns, plan investments, and achieve financial goals. Calculate step-up SIP, inflation-adjusted returns, and get detailed projections.

Calculate standard deviation, variance, and other statistical measures from a dataset

Calculate variance, standard deviation, and other statistical measures from a dataset