Recently Updated Tools & Guides
FreelyStock is a working toolset, not a frozen archive. When a tax limit changes, a carrier updates a surcharge, or a reader flags a confusing input label, the affected calculator gets revised and the change is dated. This page lists what we touched most recently — tools first, then the newest guides from the blog.
Recently updated tools
Yeast to Baking Powder Converter
Routine formula and input-label review — no calculation changes.
Workforce Planning Calculator
Routine formula and input-label review — no calculation changes.
Wine Pairing Alcohol Percentage Calculator
Routine formula and input-label review — no calculation changes.
Wedding Countdown Calculator
Routine formula and input-label review — no calculation changes.
Weather Chill Factor Calculator
Routine formula and input-label review — no calculation changes.
Latest from the blog
Pressure Unit Conversion Psi Bar: A Practical Guide with Calculator, Memory Aids & Real-World Uses
Psi, bar, and the conversions between them — with memory aids and the real-world uses where getting the unit wrong matters.
Quarter-Mile Drag Time: NHRA Rules, Banned Cars, and Fastest Class Records
How quarter-mile times are run, what NHRA rules actually require, and the cars too fast for their own class.
Property Management Fees: True Cost Beyond the % – FL Averages, Hidden Fees & Break-Even Calculator
The true cost of property management beyond the headline percentage — hidden fees and a break-even calculator.
Regression Analysis Basics: A Trust Guide for Non-Statisticians
Regression analysis explained without the statistics degree — what the numbers mean and where they mislead.
Our update policy
Standards change
IRS limits, carrier rates, unit definitions — when the official source moves, the formula moves with it.
Edge cases surface
Leap years, rounding rules, regional differences that produce wrong answers at the boundaries.
Reader feedback
If an input label is ambiguous, we fix the label — a formula is only as good as the numbers fed into it.
Every calculator also runs entirely in your browser, so updates apply instantly with nothing to reinstall. The editorial side of this process is described on our About page. Last reviewed: September 26, 2026.
Keep exploring
Why dates matter: every change above is dated, so you can tell at a glance whether a number reflects the current rules. Results are estimates, not professional advice.