Free web tools

Calculators and practice tools

Focused tools with visible methods, accessible controls and clear limits. Choose a calculator or practice set below.

Tool 01

Prescription Refill Calculator

Find your next prescription refill date from the last fill date, days supplied and an optional early refill allowance.

Tool 02

Score every PFT and CFT event and see your total and class from the official 2026 Marine Corps tables.

Tool 03

Plan roasting time, oven temperature, thermometer target, rest time and a serve at schedule for any joint.

Tool 04

Turn length, width and depth in any units into cubic yards of concrete, gravel, mulch or soil.

Tool 05

Practice Ontario road signs, G1 restrictions, right of way and safe driving with an explanation on every answer.