Straightforward calculators for school, health and money — metric or imperial, in your browser.
Calculate your weighted GPA on a 4.0 scale from your courses and grades.
Check your body mass index from height and weight, in metric or imperial.
Estimate your monthly payment, total interest, and payoff cost on a home loan.
GPA on the standard 4.0 scale, BMI from height and weight, and the monthly payment plus lifetime interest on a home loan. Each uses the standard formula for its field and shows the result the moment you've entered enough to compute it.
These are screening and planning aids, not official figures or professional advice — your school's registrar, your doctor, and your lender each apply their own rules on top.
Check headline & description limits for Google, Meta, LinkedIn & X ads at once.
Generate properly tagged campaign links in seconds. Our most-used tool.
Length, spam-word scan, and an inbox preview for Gmail & Outlook.
Five calculators in one: ROAS, CPA, CPM, CTR, and break-even ROI.
Know if your test result is real or just noise, in one paste.
Limits for Instagram, X, LinkedIn & TikTok, checked together.