Question 1

How accurate are the weight estimates?

Accepted Answer

MetalCalc Pro uses catalog densities and simplified geometry (tubes, plates, bars, mesh, flanges, etc.). Figures are ideal for logistics, RFQs, and quick checks—always confirm mass against mill certificates and detailed drawings before purchase.

Question 2

Can I use the calculator without internet?

Accepted Answer

This website needs a connection. On site without reliable signal, use the MetalCalc Pro native apps for iPhone and Android: standard profiles, grades, and offline weight estimates remain available on your device.

Question 3

Does the mobile app save calculation history?

Accepted Answer

Yes. The iOS and Android apps keep a local history of your inputs and results so you can reopen recent calculations, compare options, and copy values from the warehouse—even while offline.

Question 4

How do metric / imperial and material grades work?

Accepted Answer

Use the header toggle for metric or imperial units. Choose a grade (e.g. AISI 304, St3ps, 6061) to set density. The same calculation core is shared between the web calculator and the mobile apps.

Question 5

Can I get bar length from a target weight (meters per ton)?

Accepted Answer

For shapes where mass scales linearly with length, switch to Length from weight, enter your target mass in kg or lb, and read off the length. Some models (e.g. flanges, welded mesh) keep forward-only mode because geometry is not a simple extrusion along one bar axis.

Question 6

Where can I find the offline version (apps)?

Accepted Answer

Use the App Store and Google Play links in the header or promo section. Updates add profiles and density data while your saved history stays on the device for privacy and offline reuse. Join our Telegram community for chat and the bot calculator, and YouTube for metal pricing roundups and supply lifehacks.

Round bar

Round bar: length from mass (reverse mode)

FAQ