Last updated: September 19, 2026
General information only
The tools and guides on 99digest are provided for general information and convenience. They do not replace professional advice.
Health and fitness calculators
Calculators such as BMI, BMR/TDEE, ideal weight and pace give rough estimates based on general formulas. They do not diagnose, treat or prevent any condition, and they do not account for your individual circumstances. Talk to a qualified healthcare professional before making health decisions.
Finance, business and salary calculators
Results such as tips, discounts, margins, salary conversions and timesheet totals are estimates. They exclude taxes, fees and rules that may apply to you. They are not financial, tax, accounting or legal advice.
Education calculators
GPA and grade results are estimates using common grading scales. Your school’s official calculation and records are what count.
Security and encoding tools
Encodings such as Base64 and ciphers such as the Caesar cipher are not encryption and give no real security. The password generator uses your browser’s secure random source, but you are responsible for storing passwords safely.
Accuracy
We test the tools and check our examples, but errors are possible. Verify important results independently, and please tell us if you find a problem via the Contact page.