Tool Categories

Browse the growing Access Free Tools library by task, then open the tool or guide that matches what you are trying to finish.

Browse by task

Categories keep the site readable as the library grows, with calculators, guides, and related utilities grouped together.

Calculators

Everyday math, finance, school, and measurement calculators.

Converters

Unit, file, color, text, and measurement conversion tools.

Date & Time

Date differences, time zones, countdowns, and scheduling helpers.

Finance

Savings, budget, payment, interest, and comparison tools.

Health & Fitness

Simple wellness calculators with clear educational disclaimers.

Developer Tools

Encoding, formatting, JSON, URL, and productivity utilities.

School & Study

Student-friendly tools for notes, math, timing, and planning.

Everyday Tools

Quick utilities for ordinary tasks, decisions, and checklists.

Category snapshot

Start with a major section, or jump into one of its most useful tools.

Calculators

40 tools

Everyday math, finance, school, and measurement calculators.

40 guides available

Basic Calculator A clean online calculator for quick everyday math. Open Percentage Calculator Find percentages, percent change, discounts, markups, and reverse percentages. Open Ratio Calculator Simplify ratios, find equivalent ratios, and split totals by ratio parts. Open

Converters

1 tools

Unit, file, color, text, and measurement conversion tools.

1 guides available

Conversion Calculator Convert length, mass, volume, and temperature units with clear formula steps. Open

Date & Time

4 tools

Date differences, time zones, countdowns, and scheduling helpers.

4 guides available

Age Calculator Calculate exact calendar age in years, months, days, and total days. Open Date Calculator Find days between dates or add and subtract years, months, weeks, and days. Open Time Calculator Add or subtract hours, minutes, and seconds with normalized results. Open

Finance

15 tools

Savings, budget, payment, interest, and comparison tools.

15 guides available

Mortgage Calculator Estimate monthly principal, interest, taxes, insurance, PMI, and HOA costs. Open Loan Calculator Estimate a fixed monthly loan payment and total interest. Open Auto Loan Calculator Estimate a vehicle loan payment with tax, fees, down payment, and trade-in. Open

Health & Fitness

28 tools

Simple wellness calculators with clear educational disclaimers.

28 guides available

BMI Calculator Estimate adult body mass index and healthy BMI weight range. Open Calorie Calculator Estimate daily calories from BMR, activity level, and goal. Open Body Fat Calculator Estimate body fat percentage with a tape-measure method. Open

Developer Tools

2 tools

Encoding, formatting, JSON, URL, and productivity utilities.

2 guides available

Subnet Calculator Calculate IPv4 CIDR network, broadcast, mask, wildcard, and usable host range. Open Password Generator Generate strong random passwords with length, character sets, and ambiguity controls. Open