---
type: "tool"
title: "Unit Conversion Calculator"
description: "Convert cm to inches, kg to lbs, mm to inches and inches to cm. Free instant unit converter with reverse conversions, formulas, steps and common conversion tables."
resource: "https://www.gstcalculators.in/unit-converter.html"
language: "en"
bundle_generated: "2026-10-08"
---

# Unit Conversion Calculator

Convert cm to inches, kg to lbs, mm to inches and inches to cm. Free instant unit converter with reverse conversions, formulas, steps and common conversion tables.

- Canonical page: [Unit Conversion Calculator](https://www.gstcalculators.in/unit-converter.html)
- Publisher: [Tools Master Hub / GSTCalculators.in](../site.md)
- Category: [Basic Financial Calculators](../categories/basic.md)

This is a discovery summary of the public page, not an independently reviewed replacement. Use the canonical page for current inputs, assumptions, formulas, source links and results. The bundle generation date does not mean that tax rules were reviewed on that date.

## Topics on the page

- Centimetres → Inches
- Common conversions
- How to use this calculator

## Questions and answers from the visible page

### How do I convert centimetres and inches?

cm ÷ 2.54 = in; in × 2.54 = cm. 10 cm ≈ 3.937 in; 10 in = 25.4 cm.

### How do I convert kilograms and pounds?

kg ÷ 0.45359237 = lb; lb × 0.45359237 = kg. 10 kg ≈ 22.046 lb; 10 lb ≈ 4.536 kg.

### How do I convert millimetres and inches?

mm ÷ 25.4 = in; in × 25.4 = mm. 10 mm ≈ 0.394 in; 10 in = 254 mm.

### Why does the result show an approximation sign?

Exact conversion factors are used. Only displayed results are rounded; your input stays unchanged. ≈ means rounded.

## Exact factors and examples

See the [unit conversion reference](../guides/unit-conversions.md).

## Accuracy and corrections

[Methodology](https://www.gstcalculators.in/methodology.html) · [Editorial policy](https://www.gstcalculators.in/editorial-policy.html) · [Disclaimer](https://www.gstcalculators.in/disclaimer.html) · [Report a problem](https://www.gstcalculators.in/contact.html).