What are we
figuring out today?
A price, a percentage, a grade, a little everyday math.
Five tools, ready when you are.
01Percentage CalculatorFind a percentage of a value and the remaining amount.02Percentage ChangeCompare a new value with a positive starting value.03Unit Price ComparisonCompare two package prices by cost per matching unit.04Weighted GradeCombine scores using weights normalized to their total.05Ratio ScalingScale two quantities while preserving their relationship.
A QUICK ONE
What is 15% of 250?
Try a different number.
The explanation stays simple.
A PRACTICAL FIELD GUIDE
Compare like with like.
EverydayCalc exists for ordinary arithmetic: a shelf price, a grade, a percentage, or a proportion. We emphasize labels and worked examples over advanced menus. A transparent calculation makes it easier to spot an input mistake and understand why a result changed.
Read the guide →What happens to my inputs?
Calculations run in this page. No account, uploads, or tracking cookies are needed. Read the privacy policy for hosting and contact details.
How should I use a result?
Keep your inputs, check the formula, and review the limits listed on each tool page before using an answer.
Can I report an issue?
Yes. The contact page helps prepare an email with an example and the result you expected.