Type the numbers you already have. Each tool uses a dated table — Bikram Sambat month lengths, the 2078 grade bands, or Finance Act 2083 slabs — and shows its source.
This is not IRD, NEB, or a bank. It is not a live gold or USD–NPR board.
Last-verified 28 August 2026. Calendar conversion is a lookup, not “add 57 years”. GPA uses the Letter Grading Directive 2078 table. Tax uses Finance Act 2083 slabs. Sources and how we update.