Unit Converters
Length, weight, temperature, volume, pressure, and more — instant results with conversion formulas.
Our unit converters cover the most common everyday conversions — from cooking measurements and body weight to temperature, pressure, and precious metal weights. Every converter shows the formula, common reference values, and a quick-reference table.
⚖️ All Converters (21 tools)
cm to Inches
1 cm = 0.3937 in — height, fabric, and screen size conversions
kg to lbs
1 kg = 2.2046 lbs — weight conversion with 56 pre-calculated pages
km to Miles
1 km = 0.6214 miles — distance and speed conversions
Meters to Feet
1 meter = 3.2808 feet — elevation, ceiling height, depth
Celsius to Fahrenheit
C to F conversion — body temperature, weather, cooking
Fahrenheit to Celsius
F to C conversion — reverse temperature converter
Liters to Gallons
1 L = 0.2642 US gallons — fuel, water, liquid volume
Gallons to Liters
1 US gallon = 3.7854 L — reverse gallon converter
Cups to Gallons
16 cups = 1 gallon — cooking and recipe conversions
Cups to Tablespoons
1 cup = 16 tablespoons — kitchen measurement converter
Oz to Quarts
32 fl oz = 1 quart — fluid ounce to quart converter
Oz to Pints
16 fl oz = 1 pint — fluid ounce and pint converter
Quart to Gallon
4 quarts = 1 gallon — quick volume reference
Ounces in a Pound
16 oz = 1 lb — weight converter with common conversions
Knots to MPH
1 knot = 1.1508 mph — maritime and aviation speed
MPH to Knots
1 mph = 0.869 knots — reverse speed converter
Bar to PSI
1 bar = 14.504 psi — tire pressure and hydraulics
ATM to Bar
1 atm = 1.01325 bar — atmospheric pressure converter
Grain to Milligrams
1 grain = 64.799 mg — medication and ammunition dosing
DWT to Grams
1 dwt = 1.5552 g — pennyweight to grams for jewelry
Troy Ounces to Pounds
1 troy oz = 0.0686 lbs — gold, silver, precious metals
Conversion Categories
- Length & Distance — cm to inches, km to miles, meters to feet
- Weight & Mass — kg to lbs, ounces in a pound, grain to mg, dwt to grams, troy ounces to pounds
- Temperature — Celsius to Fahrenheit, Fahrenheit to Celsius
- Volume & Liquid — liters to gallons, cups to gallons, oz to quarts, oz to pints, quart to gallon
- Speed — knots to mph, mph to knots
- Pressure — bar to PSI, ATM to bar
Frequently Asked Questions
How do I convert kg to lbs?
Multiply kilograms by 2.2046. For example, 70 kg × 2.2046 = 154.32 lbs. Use our kg to lbs converter for instant results.
How do I convert Celsius to Fahrenheit?
Use the formula: °F = (°C × 9/5) + 32. For example, 37°C (body temperature) = (37 × 9/5) + 32 = 98.6°F. Use our Celsius to Fahrenheit converter for any value.
How many cups are in a gallon?
There are 16 cups in 1 US gallon. Use our cups to gallons converter for any quantity.
What is a troy ounce?
A troy ounce (31.1035 grams) is heavier than a regular avoirdupois ounce (28.35 grams). It's the standard unit for precious metals like gold, silver, and platinum. Use our troy ounces to pounds converter for metal weight conversions.