Calculate the area and circumference of a circle using its radius or diameter. This tool applies the correct mathematical formulas for accurate results.
Area of circle by Roman Konasov



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Whether you want more options like Plant Cell or a completely different take on the same concept, our curated list of 7+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.



Calculate the area and circumference of a circle using its radius or diameter. This tool applies the correct mathematical formulas for accurate results.













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