Category
Everyday & School Calculators calculators
Everyday maths — a discount at the till, a tip, a GPA, a final-exam target — is usually percentages and averages in disguise. The arithmetic is simple; the confidence comes from seeing it laid out.
These calculators show each line of working so you can check a total, understand a grade, or explain a result to someone else.
All everyday & school calculators tools
Discount Calculator
Sale price, savings, stacked discounts and tax.
Tip Calculator
Tip, total and per-person split.
Speed, Distance & Time Calculator
Solve for speed, distance or time.
Age Calculator
Exact age, total days and next birthday.
BMI Calculator
BMI in metric or imperial units, with the ranges.
GPA Calculator
Weighted GPA from letter grades and credits.
Weighted Grade Calculator
Current weighted grade and score needed on the final.
What you can do here
- Work out a sale price, savings and tax
- Split a bill and tip
- Calculate GPA and the score needed on a final
- Find an exact age or the days until a birthday
- Check BMI against the standard ranges
Learn the method first
Guides in this category teach the idea, then hand you to the matching calculator to practise.
Questions about this category
Are the health and money calculators advice?
No. They are educational calculations. Talk to a qualified professional before making health or financial decisions.