FREE TOOLS
Your digital
toolbox.
Electronics calculators, measurement conversions and practical tools. Calculations stay in your browser.
PC health check
Automatically inspect browser-visible RAM, display, graphics and processor capabilities.
Start the scan → ▣Display test
Inspect dead or stuck pixels with five full-screen solid colors.
Test the display → ⌨Keyboard test
Check every key, repeated input and keys that remain held down.
Test the keyboard →SPECIALIZED TOOLS
Electronics and repair
SPECIALIZED TOOLS
Measurements and conversions
Angles and mils
Degrees, radians, gradians and mils
Convert → ↕Distance and length
Metric, imperial and nautical
Convert → ¤Currency converter
Daily updated reference exchange rates
Convert → □Area
Square metres, hectares, acres and feet
Convert → ◇Volume
Litres, cubic metres and gallons
Convert → ⚖Mass
Grams, kilograms, pounds and ounces
Convert → ℃Temperature
Celsius, Fahrenheit and Kelvin
Convert → »Speed
km/h, m/s, mph and knots
Convert → ◉Pressure
Pascal, bar, PSI and atmosphere
Convert → ϟEnergy
Joules, Wh, calories and BTU
Convert → 01Digital data
Bytes, KB, MB, GB and binary units
Convert →SPECIALIZED TOOLS
Finance & business
Mortgage payment calculator
Estimate monthly payments from principal, APR and term
Convert → $Auto loan payment calculator
Calculate monthly car financing payments
Convert → $Personal loan calculator
Estimate personal loan monthly payments
Convert → $Compound interest calculator
Project the future value of an investment
Convert → $Simple interest calculator
Calculate interest without compounding
Convert → $ROI calculator
Measure an investment’s net return
Convert → $CAGR calculator
Calculate annualized growth between two values
Convert → $Profit margin calculator
Calculate margin from revenue and cost
Convert → $Markup calculator
Calculate markup applied to cost
Convert → $Break-even calculator
Find units needed to cover fixed and variable costs
Convert → $Sales tax calculator
Add an adjustable sales tax rate to a price
Convert → $VAT calculator
Calculate a VAT-inclusive price with an adjustable rate
Convert → $Discount calculator
Calculate final price after a discount
Convert → $Sales commission calculator
Calculate commission from sales amount
Convert → $CPC calculator
Calculate average advertising cost per click
Convert → $CPM calculator
Calculate cost per thousand impressions
Convert → $CPA calculator
Calculate average acquisition cost
Convert → $ROAS calculator
Measure revenue generated per advertising dollar
Convert → $CTR calculator
Calculate the percentage of impressions that produced a click
Convert → $Conversion rate calculator
Calculate the percentage of visitors who converted
Convert → $Customer churn rate calculator
Measure customers lost during a period
Convert → $Customer lifetime value calculator
Estimate the average value generated by a customer
Convert → $Debt-to-income ratio calculator
Compare monthly debt payments with gross monthly income
Convert → $Loan-to-value calculator
Compare loan amount with property value
Convert → $Rental yield calculator
Compare annual rent with property price
Convert →SPECIALIZED TOOLS
Construction
SPECIALIZED TOOLS
Energy
SPECIALIZED TOOLS
Automotive
SPECIALIZED TOOLS
Technology
Download time calculator
Estimate transfer time from file size and speed
Convert → #Website bandwidth calculator
Estimate monthly website data transfer
Convert → #Hosting cost per user
Allocate monthly hosting cost across active users
Convert → #Uptime calculator
Convert uptime percentage into monthly downtime
Convert →SPECIALIZED TOOLS
Health
SPECIALIZED TOOLS
Time
SPECIALIZED TOOLS