Free Online Tool
Percentage Calculator
Calculate percentages, percentage change, and 'X is what percent of Y' — all in one tool.
Conversion Formula: Decimal to Percentage: (Decimal × 100) + '%' | Percentage to Decimal: (Percentage ÷ 100)
About
About Percentage Calculator
Calculate percentages, percentage change, and 'X is what percent of Y' — all in one tool. This free online tool runs entirely in your browser — no data is sent to any server. Bookmark it and use it anytime you need it.
Upgrade to Pro
Unlimited usage, bulk processing, API access & priority support — €9/month
Free
- ✓ 5 uses per day
- ✓ Basic features
- ✗ No bulk processing
- ✗ No API access
Pro
- ✓ Unlimited uses
- ✓ All features unlocked
- ✓ Bulk processing
- ✓ API access
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