All Tools

Convert between RGB, HEX, HSL, and CMYK color formats

Convert between metric and imperial cooking measurements with ingredient densities

Scale recipe ingredients with smart adjustments for salt, spices, and leavening agents

Calculate total recipe cost and cost per serving from ingredient prices

Calculate calories, macros, and nutrition facts from selected foods

Calculate fuel consumption in L/100km, km/L, and MPG with trip and cost estimates

Calculate tire dimensions, compare sizes, and check speedometer error

Track vehicle service schedules and calculate next due dates with Swiss MFK reminders

Calculate auto loan and lease payments with buy vs lease comparison (CHF/EUR)

Calculate molar mass and composition from chemical formula

Calculate solution concentration from mass, moles, and volume

Calculate dilution parameters using M₁V₁ = M₂V₂ formula

Calculate limiting reactant and theoretical yield from chemical equations

Calculate pH, pOH, and ion concentrations for acids, bases, and buffers

Interactive periodic table with element properties and search

Convert between cryptocurrencies and fiat currencies (CHF, EUR, USD)

Calculate MD5, SHA-1, SHA-256, SHA-512 hash values

Validate Bitcoin, Ethereum, and Litecoin wallet addresses

Calculate Bitcoin mining profitability based on hash rate and electricity cost

Convert between bytes, KB, MB, GB, TB and more

Convert Mbps to KB/s, GB/day, TB/week and more

Calculate download time from bandwidth and file size

Calculate theoretical TCP throughput using the Mathis formula

Calculate BDP and optimal TCP buffer size

Calculate exact age from birthdate in years, months, and days

Add or subtract days, weeks, months, and years from a date

Add or subtract hours, minutes, and seconds

Calculate hours between two times or dates

Calculate duration between two dates and times

Convert times between different time zones

Count days between dates or until a future date

Find what day of the week any date falls on

Convert between time units (seconds, minutes, hours, days, weeks, months, years)

Calculate stress, strain, and Young's modulus with material database

Calculate second moment of area for various cross-sections

Calculate beam deflection, shear, and bending moment with diagrams

Calculate Euler critical load, AISC allowable load, and slenderness ratio for columns

Calculate pressure drop, Reynolds number, and friction factor for pipe flow

Convert between engineering units: force, pressure, stress, torque, and more

Calculate monthly payments, view amortization schedule, and visualize your loan

Calculate compound interest on investments with regular contributions

Calculate monthly payments for personal, auto, or any loan type

Plan your retirement with savings projections and income planning

Calculate tip amount and split bills between multiple people

Calculate how long to reach your savings goal with regular contributions

Calculate the impact of inflation on purchasing power over time

Calculate return on investment and annualized returns

Calculate break-even point for your business

Calculate gross, operating, and net profit margins

Calculate discounts, sale prices, and savings

Convert between major world currencies

Calculate car loan payments, interest, and total cost

Calculate personal loan payments with fees and APR

Calculate student loan payments with grace period options

Calculate home equity loan or HELOC payments

Calculate how long to pay off debt with extra payments

Calculate credit card payoff time and interest

Calculate how much to save for a down payment

Calculate retirement savings with employer matching

Compare Traditional vs Roth IRA retirement accounts

Calculate bond prices, yields, and returns

Calculate annuity payments and retirement income

Calculate mortgage payments with CHF/EUR support and Swiss market rates

Calculate gross and net rental yield for Swiss property investments

Estimate Swiss property values using the hedonic method

Calculate your Body Mass Index and health category

Calculate your Corpulence Index (Ponderal Index)

Calculate body fat percentage using the US Navy method

Calculate lean body mass using multiple formulas

Calculate BSA using multiple medical formulas

Calculate ideal body weight using multiple formulas

Calculate Basal Metabolic Rate for calorie planning

Calculate Total Daily Energy Expenditure

Calculate daily calorie needs for weight goals

Calculate calories burned during various activities

Calculate target heart rate zones for exercise

Calculate your one-rep max from submaximal lifts

Calculate running pace, speed, and race times

Calculate daily macronutrient targets

Calculate daily protein requirements

Calculate daily carbohydrate needs

Calculate daily fat intake requirements

Calculate daily water intake needs

Determine your body type (ectomorph, mesomorph, endomorph)

Calculate your healthy weight range based on height

Calculate body fat using US Army standards

Calculate blood alcohol content

Calculate glomerular filtration rate for kidney function

Calculate optimal sleep and wake times

Calculate pregnancy due date and milestones

Calculate ovulation date and fertile window

Track menstrual cycle and predict next period

Calculate recommended weight gain during pregnancy

Calculate vSphere ESX cluster storage capacity requirements

Calculate Kubernetes cluster node requirements for your workload

Calculate ESX host requirements for VM workloads

Calculate VMware VCF/VVF licensing costs

Calculate total cost of ownership for virtualization infrastructure

Calculate Hyper-V host requirements with HA and Windows licensing

Compare Datacenter vs Standard licensing costs

Compare VMware, Hyper-V, Proxmox, and XCP-ng platforms

Compare up to 4 CPUs by SPECint2017 score, performance-per-core, and performance-per-watt

Plan a server fleet refresh: calculate how many new servers match your current fleet performance

Perform arithmetic calculations with expression support

Add, subtract, multiply, divide, and simplify fractions

Calculate percentages, percent change, and percent difference

Calculate percent error between experimental and actual values

Round numbers using different methods and precision

Calculate mean, median, mode, and other averages

Perform long division with step-by-step solution

Calculate powers and exponential expressions

Calculate square roots, cube roots, and nth roots

Calculate logarithms with any base

Solve quadratic equations and find roots

Find all factors of a number

Calculate Greatest Common Divisor of multiple numbers

Calculate Least Common Multiple of multiple numbers

Find prime factors and divisors of any number

Calculate triangle properties from sides and angles

Calculate missing side using Pythagorean theorem

Calculate circle properties from radius, diameter, or circumference

Calculate area of various shapes

Calculate surface area of 3D shapes

Calculate volume of 3D shapes

Calculate slope, equation, and angle of a line

Calculate standard deviation and variance

Calculate comprehensive statistics for a data set

Calculate probability of events and combinations

Calculate required sample size for surveys and studies

Calculate z-score and normal distribution probabilities

Calculate p-values for statistical hypothesis testing

Calculate confidence intervals for means and proportions

Calculate permutations and combinations with and without repetition

Calculate and simplify ratios, find equivalent ratios

Convert and perform operations in binary

Convert and calculate in hexadecimal

Convert to/from scientific notation and perform operations

Perform arithmetic on arbitrarily large integers

Analyze and generate arithmetic, geometric, and Fibonacci sequences

Perform matrix operations: add, multiply, transpose, determinant

Calculate radioactive decay and remaining quantity

Calculate distances between points in 2D, 3D, and on Earth

Generate random numbers with various distributions

Convert BPM to Hz, bar length, and note durations

Calculate IPv4 and IPv6 subnet details with CIDR notation

Calculate IP ranges from CIDR notation and check if an IP is within range

Classify IP addresses by class (A-E) and identify public/private status

Calculate network throughput from data transferred and time

Calculate Fibre Channel BB credits for ISL links based on speed and distance

Convert between ping time units (seconds, milliseconds, microseconds, nanoseconds)

Calculate aspect ratios from width and height

Fit an image on a screen with letterboxing

Calculate megapixels from print size and DPI

Calculate megapixels from width and height

View megapixels in different aspect ratios

Estimate image file size for JPEG, PNG, RAW formats

Calculate field of view from focal length and distance

Calculate ideal shooting distance for portraits

Match settings between different sensor sizes

Calculate DoF from aperture, focal length, and distance

Calculate hyperfocal distance for maximum depth of field

Depth of field with adjustable CoC for print size and viewing

Accurate depth of field for macro photography

Interactive table showing DoF across apertures and distances

Calculate CoC from sensor, print size, and viewing distance

Calculate Exposure Value from camera settings

Calculate exposure time with ND filters

Calculate golden hour times based on your location

Calculate sun position, twilight times, and light phases for photography

Calculate exposure time for star trail rotation

Calculate max exposure to prevent star trailing (NPF Rule)

Calculate interval, clip length, and memory for time lapse

Calculate when your camera becomes diffraction-limited

Calculate effective aperture and diffraction in macro photography

Convert between m/s, km/h, mph, knots, and more

Estimate video file size from resolution and duration

Estimate audio file size from duration and format

Reference guide for ProRes, DNxHD, DCP, and MPEG bitrates

Calculate Digital Cinema Package file sizes

Calculate screen luminance for cinema projection

Calculate screen dimensions from diagonal and aspect ratio

Estimate video bitrate based on resolution and codec

Convert between frame rates with ffmpeg commands

Encode and decode URLs and special characters

Generate Content Security Policy headers

Check HTTP redirect chains and status codes

Analyze SPF records for email authentication

Check security headers and TLS configuration

Encode and decode HTML entities

Browse and copy HTML character entities

Browse and copy emoji with codes

Analyze page SEO metrics and get recommendations