Disclaimer
California Calculator is an independent educational resource. Our results are estimates, not government determinations or professional advice.
Not Affiliated With Any Government Agency
California Calculator (californiacalc.com) is an independent website. It is not operated by, affiliated with, or endorsed by the State of California, any California or federal agency, the University of California, the California State University, the State Bar of California, the California Lottery, or any toll authority. We cite those organizations only as the sources for the rates and rules our calculators use.
Effective date: September 27, 2026
Educational Estimates, Not Advice
Every result on this site is an estimate for educational and planning purposes. Nothing here is legal, tax, financial, medical, or academic advising advice, and no result should be treated as a government determination. Always confirm important figures with the responsible agency or a qualified professional before acting on them.
Calculator-Specific Notices
BAC Alcohol Calculator
The Widmark formula gives a population-average estimate. Your actual blood alcohol level depends on food, medication, health, and metabolism. Never use this estimate to decide whether you can drive — if you have been drinking, do not drive. You can be arrested for DUI below 0.08% if your driving is impaired.
Lottery Tax & Payout Calculator
Federal tax is estimated at the 24% withholding rate and the 37% top bracket; your actual tax depends on your full return. It is not tax or financial advice — consult a tax professional and the California Lottery before claiming a prize.
Bar Exam Score Calculator
The scaled written score is an approximation. The State Bar of California scales scores for each administration, and only the State Bar's results determine whether you pass.
GPA and Graduation Credits Calculators
UC and CSU calculate your admissions GPA from your application, and local districts set their own graduation requirements. Confirm with your school counselor and the university.
Tip & Bill Split Calculator
Labor law and sales tax information is general. It is not legal advice; contact the California Labor Commissioner or CDTFA for your situation.
Toll & Bridge Calculator
Tolls change on scheduled dates and vary by toll point and direction. The toll authority’s bill or account is the final amount owed.
Earthquake Intensity Calculator
Results come from a simplified attenuation model, not a USGS ShakeMap or a prediction. Local soil, building type, and fault rupture can produce very different shaking. Follow guidance from emergency management agencies.
Driving Mileage Calculator
Distances and drive times are approximate. Check live conditions, closures, and chain controls with Caltrans before you travel.
Sources & Verification
We check each calculator's figures against California and federal government sources and record the effective date of every rate we use. Learn more about our process on the About page. Rates can change between our reviews, so the original source always takes precedence over this site.
Report an Error
If a figure looks outdated or a result seems wrong, email procalculators@outlook.com or use our contact page. Use of this site is also subject to our Terms of Use and Privacy Policy.