<p>The present study was conducted to assess the suitability of five multinutrient extractants namely ammonium bicarbonate–diethylenetriaminepentaacetic acid (AB-DTPA), Mehlich 3, modified Morgan, Morgan, acid ammonium acetate ethylene diamine tetra acetic acid (AAAc-EDTA) over standard method for determination of plant available potassium in soils of the Inceptisols for nutrition of wheat (<i>Triticum aestivum</i> L.). Twenty soil samples from Inceptisol were analysed for extractable K content and were used to grow wheat with four levels of K (0, 30, 60 and 90&#xa0;kg ha^− 1). The extractable soil K by almost all the extractants showed significant positive correlations with soil organic C, clay content, available N, P, K and micronutrient content. The coefficient of correlation for relationship of K extracted by different multinutrient extractants with those extracted by NH₄OAc were 0.903^** (AB-DTPA), 0.952^** (Mehlich 3), 0.798^** (Modified Morgan), 0.830^** (Morgan) and 0.838^** (AAAc-EDTA), among which Mehlich 3 bears the highest correlation. Among the extractants, Mehlich 3 showed the highest correlation sum with other extractants. Moreover, maximum correlation of Mehlich 3 extractable K content with dry matter yield, K concentration and uptake by plant exists among the multinutrient extractants. Therefore, Mehlich 3 emerged as the most suitable extractant for available K in Inceptisols for nutrition of wheat. Critical concentration of Mehlich 3 extractable K in soils of Inceptisol was found to be 240&#xa0;kg ha^− 1 which remained higher as compared to other extractants viz. Modified Morgan, Morgan, AB-DTPA, AAAc-EDTA and ammonium acetate which have their critical limits as 225, 210, 190, 185 and 175&#xa0;kg ha^− 1 respectively. The critical limit of K in grain of wheat was found to be 0.9%.</p>