Limit Calculator

A limit describes the value a function approaches as its input approaches a particular value. Limits are the rigorous foundation of calculus — they underpin the definitions of continuity, derivatives, and integrals

The calculator uses the standard published formula for limit describes the value a function approaches as its input approaches a particular value. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: lim(x→c) f(x) = L means f(x) gets arbitrarily close to L as x approaches c. Each step in the calculation is shown so you can verify the result manually.