Kalkulator Kesalahan Persentase
Percentage error expresses how far an estimate or measurement is from the accepted true value, as a percentage. Essential for lab reports, forecasts and quality control.
Halimbawa
Estimated 105 vs actual 100: (5 ÷ 100) × 100 = 5%
Paano kalkulahin
- Enter the estimated or measured value.
- Enter the actual (true) value.
- Read the percentage error — lower means more accurate.
Rumus
Error = (|Estimated − Actual| ÷ |Actual|) × 100
Paliwanag
- Physics and chemistry lab reports.
- Forecast accuracy in business planning.
Mga kaugnay na kalkulator
Kalkulator Selisih Persentase
Bandingkan dua nilai dan hitung selisih persentasenya secara simetris.
Gamitin ang kalkulatorKalkulator Perubahan Persentase
Hitung perubahan persentase antara dua nilai, baik kenaikan maupun penurunan.
Gamitin ang kalkulatorKalkulator Persentase
Hitung berapa persentase sebuah angka dari angka lain, berapa nilai persentase dari sebuah angka, dan perubahan persentase antara dua nilai.
Gamitin ang kalkulatorKalkulator Berapa Persentase
Hitung berapa persentase sebuah bagian dari keseluruhan.
Gamitin ang kalkulatorKalkulator Persen
Hitung persentase dengan cepat: nilai persentase, berapa persen, dan perubahan antara nilai.
Gamitin ang kalkulatorMga madalas na tanong
What is a good percentage error?
It depends on the field: school labs often accept under 5–10%, while engineering tolerances can be far stricter. Always compare against the accepted standard for your context.
Can percentage error be negative?
No — the formula uses the absolute difference, so the error is always positive. The direction of the mistake is reported separately in lab work.