All algebraic equations and mathematical formulas were derived from calculus. The US was built using applied math and engineering up until the Soviets launched Sputnik. US colleges and universities then switched to theoretical engineering.
I am a Professional Engineer with a BS civil engineering and have never needed to use calculus on any project that I have worked on in 34 years.
Ha. Same here. BS in M.E. and have never once used calculus in over 30 years. Lots of trig, mechanics, and finance though. To be fair though, I have spent over half my career in a technical sales/manager role.

God is a Civil Engineer. Consider genitals; Who else would design a sewer line running right down the middle of the playground?
I’m a professional engineer with a bachelor’s degree in mechanical/electrical engineering and have been working as such for 59 years. I have used Calculus regularly the entire time.
I have a BS degree in Wood Products Engineering. Basically, Mechanical Engineering for wood. I took Calculus 1 & 2. Got A’s in both. Dropped Calc 3 because I would have failed it.
Got As in Statics, Mechanics and Strength of Materials. It just made sense and came easy to me.
Graduated and became a commodity lumber trader. Never used any of it in my job. However, I did design and build my first house. Built a couple barns/sheds and lots of furniture.
In ME I didn’t have to use Calculus because the formula makers already had.
I understood Calculus and how it was applied. That helped, expecially when dealing with the Math guys.