Multiplication Calculator

Multiplication – Quick Cheat Sheet

• Two-number mode: Fill A and B, leave list blank.
• List mode: Put at least two numbers in the list (comma or spaces). The tool multiplies them left-to-right.
• Accepted formats: integers (12), decimals (3.5), scientific (2e3, -4.2E-5).
• Display precision: controls digits shown (2–15). Internally uses double precision floating-point.
• Scientific notation: enables automatically for very large (≥1e12) or very small (<1e-6) magnitudes.
• Step-by-step: Shows the running product so you can verify each multiplication.
• Tip: For exact large-integer math, consider using a big-number library offline (e.g., BCMath) if needed.