Conversion tools

Conversion calculators

Convert common length, area, volume, weight, temperature, and speed units.

Plan with clearer estimates

Conversion calculators help move between common unit systems without burying the conversion factor. They are especially useful before material, recipe, travel, or measurement decisions.

Confirm the source unit.
Use one factor at a time.
Keep enough decimal precision.

Inches to CM Calculator

Conversion

Inches to CM Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Feet to Meters Calculator

Conversion

Feet to Meters Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Pounds to KG Calculator

Conversion

Pounds to KG Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Gallons to Liters Calculator

Conversion

Gallons to Liters Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Celsius to Fahrenheit Calculator

Conversion

Celsius to Fahrenheit Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Square Feet to Square Meters Calculator

Conversion

Square Feet to Square Meters Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Miles to Kilometers Calculator

Conversion

Miles to Kilometers Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Ounces to Grams Calculator

Conversion

Ounces to Grams Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Cups to Milliliters Calculator

Conversion

Cups to Milliliters Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Acres to Square Feet Calculator

Conversion

Acres to Square Feet Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Yards to Meters Calculator

Conversion

Yards to Meters Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Liters to Gallons Calculator

Conversion

Liters to Gallons Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Kilograms to Pounds Calculator

Conversion

Kilograms to Pounds Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Centimeters to Inches Calculator

Conversion

Centimeters to Inches Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Meters to Feet Calculator

Conversion

Meters to Feet Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Kilometers to Miles Calculator

Conversion

Kilometers to Miles Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Hectares to Acres Calculator

Conversion

Hectares to Acres Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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MPH to KPH Calculator

Conversion

MPH to KPH Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Square Meters to Square Feet Calculator

Conversion

Square Meters to Square Feet Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Fahrenheit to Celsius Calculator

Conversion

Fahrenheit to Celsius Calculator for quick conversion estimates with clear formulas, worked examples, and copyable results.

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Helpful conversion guides

Use these guides to understand the assumptions behind the calculators and check your estimate before acting on it.