Addition Calculator

Numbers (one per field)

Tip: You can also paste a list below (comma, space, or newline separated).

Bulk paste (optional)

Precision (optional)

Addition - Quick Cheat Sheet

Inputs: Enter one number per field or paste a list. Negatives and decimals are allowed.
Live preview updates as you type; press Calculate for the server result (good for shareable URLs).
Precision: Choose fixed decimals (0-10) or leave on Auto for compact output.
Floating-point note: 0.1 + 0.2 may not equal 0.3 exactly in binary floats. Use precision or round if needed.
Bulk paste: Commas, spaces, or newlines are all fine (e.g., 10, 2.5, -3 or each on its own line).
URL format: Repeat n[]=value for multiple numbers or use a single nlist= with a list.

Examples