Free calculators, converters, generators, and tools.
Popular Tools | New Tools | All Categories
BUILD YOUR OWN APP
Can't decide? Enter your options and let the app pick one ...
Generate random colors and display their HEX, RGB, and HSL ...
Generate one or more random dates within a specified range. ...
Estimate annual energy toolion, savings, and CO2 offset ...
Estimate Social Security retirement benefits. Use this free ...
Calculate the SMOG readability grade level from ...
Calculate SLG (Slugging Percentage) for a baseball batter. ...
Generate a URL-friendly slug from any text string. Use this ...
Calculate slope from two points on a coordinate plane. Use ...
Estimate bedtime or wake-up time based on sleep cycles. Use ...
Reduce fractions to simplest form. Use this free ...
Calculate simple interest on a principal amount. Use this ...
Calculate squares of siding needed to cover exterior walls. ...
Calculate daily, monthly, and annual water use from ...
Convert shoe sizes between US, EU, UK, and other common ...
Calculate the SHA-256 hash of any text using the browser ...
Calculate concentrations at each step of a serial dilution ...
Calculate final concentration after n serial dilution ...
Calculate sensitivity, specificity, and accuracy from a ...
Calculate seller-financed mortgage payment and total ...
Convert seconds to minutes. Use this free browser-based ...
Convert numbers to and from scientific notation. Use this ...
Perform advanced arithmetic, powers, roots, logarithms, ...
Estimate how long it will take to reach a savings goal. Use ...
Project your savings growth with regular deposits. Use this ...
Determine the required sample size for a given margin of ...
Convert salt between table salt, kosher salt, and sea salt ...
XTRAW Tools
Free calculators, converters, generators, and simple apps for everyday decisions.
XTRAW Tools
Free calculators, converters, generators, and simple apps for everyday decisions.