Date & Life Calculators

Some life questions don't have obvious dollar signs attached — until you do the math. This category brings together tools for the personal milestones and planning challenges that don't fit neatly into a spreadsheet: how old am I exactly, how far can I run in a target pace, what does it actually cost to move across the country, and what will raising a child set me back over 18 years?

The age calculator gives your exact age in years, months, days, and even hours — useful for anything from insurance forms to milestone celebrations. The date calculator adds and subtracts days from any date, calculates the number of working days between two dates, and handles deadline math for project planning or legal timelines.

Runners and cyclists will find the pace calculator useful for race planning — convert between min/mile, min/km, and mph, calculate your finish time at a given pace, or find the pace you need to hit a time goal. It covers everything from 5K to marathon distances.

The big-picture tools are the relocation cost calculator — which estimates moving van costs, security deposits, and the salary premium you'd need when moving between US cities — and the child cost calculator, which uses USDA methodology to estimate the $300,000+ average cost of raising a child to age 18 in the United States, broken down by category.