Exhibit 12.1

MTS Systems Corporation

Computation of Ratio of Earnings to Fixed Charges

(Dollars in thousands)

	Fiscal Year Ended															Six Months Ended
	October 1, 2011			September 29, 2012			September 28, 2013			September 27, 2014			October 3, 2015			April 2, 2016
Ratio of Earnings to Fixed Charges (1):	25.04			31.50			33.38			21.16			19.89			12.17
Reconciliaton:
Income from continuing operations before taxes	$	73,305		$	79,780		$	79,254		$	58,443		$	59,172		$	17,311
Fixed charges	3,050			2,616			2,448			2,899			3,133			1,550
Earnings for computation	$	76,355		$	82,396		$	81,702		$	61,342		$	62,305		$	18,861
Fixed charges:
Interest on indebtedness and amortization of debt discount	1,283			849			591			1,003			1,204			585
Capitalized interest	—			—			—			—			—			—
Interest expense on rental expense (1/3 rent)	1,767			1,767			1,857			1,896			1,929			965
Total Fixed Charges	$	3,050		$	2,616		$	2,448		$	2,899		$	3,133		$	1,550
Lease Expense	5,300			5,300			5,570			5,687			5,787			2,894
Interest Income	(368		)	(544		)	(257		)	(311		)	(409		)	(127		)
Interest Expense	1,283			849			591			1,003			1,204			585
Net Interest	915			305			334			692			795			458

(1) For the purposes of calculating the ratio of earnings to fixed charges, “earnings” consist of income (loss) from continuing operations before income taxes, fixed charges, and amortization of capitalized interest, but excludes equity method investment earnings and capitalized interest. “Fixed charges” consist of (i) interest on indebtedness, whether expensed or capitalized, (ii) that portion of rental expense which we believe to be representative of interest (one-third of rental expense) and (iii) amortization of debt discount and expense.