Hi, what do you want to do?
Math Is Fun
Math Is Fun: Unit Conversion Tool
Use this online tool to convert measurements of acceleration, area, density, electricity, energy, force, length, mass, and other measurable properties.
CK-12 Foundation
Ck 12: Measurement: Conversions in Metric Units
[Free Registration/Login may be required to access all resource tools.] Convert among metric units of measure using powers of 10.
CK-12 Foundation
Ck 12: Measurement: Conversions of Measurements in Metric Units
[Free Registration/Login may be required to access all resource tools.] Convert metric units of length, mass, or capacity by multiplying by powers of ten.
Sophia Learning
Sophia: Converting From Grams to Particles: Lesson 2
This lesson demonstrates how to convert from grams to particles (molecules, atoms, ion). It is 2 of 2 in the series titled "Converting from Grams to Particles."
Other
All math.com: Us/metric Conversion Tables
Convert metric measurements to U.S. Measurements and the reverse, too. Easy to follow tables have sections for area, length, mass,temperature and volume.
University of Waterloo (Canada)
University of Waterloo: Cemc: Metric Conversion [Pdf]
This worksheet is designed for Grade 7 students. The students are expected to: i. understand both metric and customary systems of measurement ii. understand relationships among units and convert from one unit to another within the same...
Khan Academy
Khan Academy: Estimating Mass (Ounces and Pounds)
Practice estimating the mass of real life objects using US customary units. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Calculator Soup
Calculator Soup: Weight (Mass) Conversion Calculator
This online conversion calculator will convert among different units of weight or mass.
Science Education Resource Center at Carleton College
Serc: The Mole in Chemistry: Determining the Number of Atoms in Everyday Items
Students explore the concept of the mole as a measure of quantity. They build spreadsheets that allow them to convert between moles, grams, and atomic mass units for given quantities of everyday items, elements, and simple chemical...
Other
Conversions for Weight Measurements
This site allows you to convert weight/mass measurements. For example converting tons to grams. CCSS.Math.Content.3.MD.A.2 Measure and estimate liquid volumes and masses of objects using standard units
Khan Academy
Khan Academy: Us Customary Conversion Word Problems
Practice US customary length, volume, and mass problems that require expressing measurements given in a larger unit in terms of a smaller unit. Students receive immediate feedback and have the opportunity to try questions repeatedly,...
Khan Academy
Khan Academy: The Mole and Avogadro's Number
An explanation the mole (named for molecule) and Avogadro's Number. One mole of a substance is equal to 6.022 times 10 to 23rd power units of that substance (such as atoms, molecules, or ions). The number 6.022 time 10 to 23rd power is...
Other
Ask Numbers: Measurement Conversion Calculators and Charts
What kind of unit conversion would you like to do? This site will allow you to do a multitude of conversions. Just click on the specific measurement you are needing to convert. It also provides a history of measurements and a chart of...
Other
Online Conversion
Conversion calculators galore! Convert just about anything from one measureable unit into another measureable unit here with over two dozen calculators. Each of the links is specific to a measureable quantity. Some examples include...
Illustrative Mathematics
Illustrative Mathematics: 8.ee Ant and Elephant
In this problem comparing the mass of an ant to that of an elephant, 8th graders are contrasting a very small quantity with a very large quantity. They need to convert between grams and metric tons so as to work with the same units, and...
Science Education Resource Center at Carleton College
Serc: Radioactive Decay Calculator
Learners will use this online Radioactive Decay Calculator to compute radioactive decay, timed decay, and timed solid disposal for a databank containing 116 isotopes. This calculator also features University of British Columbia disposal...