I coded a Kerbal Space Program Delta V Calculator in python! (link is here if you're interested = https://replit.com/@Crazyguy66/KSP-dV-calculator?v=1) : r/KerbalSpaceProgram
Cosmicflows-3 Distance–Velocity Calculator
CASIO DV-220 D-220 Dual Display Calculator, Battery/Solar Powered - 1.4" x 5.3" x 7.4" - White - 1 Each - Newegg.com
Ryans Computers Ltd. - Casio DV-220 Dual Display Calculator ✓ Equipped with two LCD displays to allow performance of different calculations or viewing of two values. ✓ 12 digits + 12 digits.
Diminished Value Calculator. DV Calculator, Insurance Claim. | Diminished Value of Georgia
Texet DV-8 Desktop Calculator | Calculators | YPO
Is anyone aware of a reliable Gen 1 DV calculator? This one unfortunately no longer exists. : r/GenerationOne