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Frequently Asked Questions
Are CalcDrop calculators really free?
Yes! All 76+ calculators are completely free to use. No signup, no hidden fees, no premium tiers. We're supported by non-intrusive advertising.
Do you store my calculations?
No. All calculations happen in your browser. We don't see, store, or have access to the numbers you enter.
Can I use CalcDrop on my phone?
Absolutely! CalcDrop is fully responsive and works great on phones, tablets, and desktops.
How accurate are your calculators?
Our calculators use industry-standard formulas and are regularly tested for accuracy. However, they're meant for educational and estimation purposes. For important financial or health decisions, please consult a professional.
How do I suggest a new calculator?
Use the contact form above and select "Suggest a Calculator." We read every suggestion and prioritize based on user demand!