The only way to be sure is to try on the shoes.
Shoes with safety toe-caps do not expand therefore they need to be comfortable (wide enough at the toes) from day one. There are different widths of safety toecaps available so different manufacturers might use different sizes making the 'rule of thumb' to buy 1 size larger not applicable.
Mechanics and engineers may be issued steel toed boots, but regular combat boots are not steel toed, nor would you want to be using steel toed boots for day-to-day military duties.
A pair of cheap Converse Steel Toe boots can cost as little as $92.00 US Dollars on Amazon. Since your order will be over $25.00 US Dollars, you get free shipping with your order.
"Crampons"...they strap to bottom of hiking or climbing boots. They have steel spikes to grip the ice.
Steel toe boots are made in the same way as non steel toe boots. The difference is that during the lasting process a steel toe is added. After the lasting process the shoes are ready to have the outsole attached to it. If the boots come with a steel mid plate, then these are added after the lasting and before adding the outsole.
Steel toed boots can get a little colder than other boots because of the steel that is located in them. How cold these boots get will feel different to each person. A person should wear some warm socks.
Western Chief Kids makes some steel shank rain boots.
BOC Have introduced a range of Steel Blue Safety Boots into their retail stores or ring 01912950780 for details
mos in army that require steel toe boots
steel-tip boots
matterhorn boots. made in the U.S.A. and used by construction crews and military world wide. Wolverine boots also meet US government standards for steel toe protection.
Steel. They are safety boots with steel reinforced toes in case something falls on your feet. Commonly required by some employers and readily available most all shoe stores.
Try steel toe safety guards. They attach externally to your shoe, and are removable. That is your only option. Just buy steel toe boots.