Chronological Age Calculator

Calculate exact age in years, months, and days

Date of Birth

VO2 Max Calculator

Calculate maximum oxygen uptake capacity

Dog Age Calculator

Convert dog age to human years accurately

ETG Alcohol Calculator

Calculate ethyl glucuronide breakdown time

Coast FIRE Calculator

Calculate coast to financial independence

Roth IRA Calculator

Retirement growth estimator

Free browser-based tools for everyone. Your data never leaves your device.

All tools process data locally in your browser.