I will build exact crypto profit calculator in cpp using gmp with zero rounding errors

C
chrischase567
C
chrischase567
Chris

About this gig

Tired of 0.00000001 errors costing you money?Regular double/float causes rounding errors in crypto & fintech. I solve it with C++ GMP (GNU Multiple Precision).I will build you an EXACT profit calculator with ZERO rounding error using GMP mpf_class and mpq_class rational numbers.

WHAT YOU GET:

.100% exact profit/loss calculation (no float/double)

.C++ source code with GMP library

.Handles huge crypto decimals (18+ digits)

.Buy, Sell, Fee, ROI % exact to the last satoshi

.Console or file output

IDEAL FOR:

.Crypto traders & exchanges

.Fintech startups

.DeFi / Web3 projects

.Accounting & Tax tools

WHY ME?

I specialize in high-precision C++ and GMP. No more 19.9999999 instead of 20. Exact results only.

Packages:

Basic = 1 coin exact calculator

Standard = Full portfolio tracker

Premium = Enterprise CSV + Tax Report


Message me before ordering for custom needs!


Get to know Chris

Chris

Developer

  • FromKenya
  • Member sinceSep 2026
  • Avg. response time1 hour
  • Languages

    English
I'm a C++ developer specializing in high-precision financial software using GMP (GNU Multiple Precision Library).I build crypto profit calculators that NEVER have rounding errors - perfect for traders, exchanges, and fintech.What I offer: .Exact P&L calculation with unlimited decimals .No float/double errors .Fast, clean C++ code .Web version + mobile version Built with GMP, MPC, Python, C++. 100% accuracy guaranteed.